Delete unused mingw bins

Effectively a revert of aosp/1870856 (which reverted aosp/1867131) but
additionally removing the now unused windres and windmc now that the NDK
has moved off of these to the LLVM equivalents (aosp/1869563,
aosp/1886404).

There's a DLL under x86_64-w64-mingw32/bin/ that remains:
libwinpthread-1.dll.

Bug: 203698882
Bug: 203794880
Test: (NDK) ./checkbuild.py --system windows64
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I6e45dbc83df4f44aa0fa4f07bbb9383009aea43e
diff --git a/bin/x86_64-w64-mingw32-addr2line b/bin/x86_64-w64-mingw32-addr2line
deleted file mode 100755
index 5d3706e..0000000
--- a/bin/x86_64-w64-mingw32-addr2line
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-ar b/bin/x86_64-w64-mingw32-ar
deleted file mode 100755
index 8571e38..0000000
--- a/bin/x86_64-w64-mingw32-ar
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-as b/bin/x86_64-w64-mingw32-as
deleted file mode 100755
index 30f2c63..0000000
--- a/bin/x86_64-w64-mingw32-as
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-c++ b/bin/x86_64-w64-mingw32-c++
deleted file mode 100755
index 82e0e21..0000000
--- a/bin/x86_64-w64-mingw32-c++
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-c++filt b/bin/x86_64-w64-mingw32-c++filt
deleted file mode 100755
index f9f13ee..0000000
--- a/bin/x86_64-w64-mingw32-c++filt
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-cpp b/bin/x86_64-w64-mingw32-cpp
deleted file mode 100755
index 01ae45d..0000000
--- a/bin/x86_64-w64-mingw32-cpp
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-dlltool b/bin/x86_64-w64-mingw32-dlltool
deleted file mode 100755
index 36b6f16..0000000
--- a/bin/x86_64-w64-mingw32-dlltool
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-dllwrap b/bin/x86_64-w64-mingw32-dllwrap
deleted file mode 100755
index 10a6d9c..0000000
--- a/bin/x86_64-w64-mingw32-dllwrap
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-elfedit b/bin/x86_64-w64-mingw32-elfedit
deleted file mode 100755
index 3e54663..0000000
--- a/bin/x86_64-w64-mingw32-elfedit
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-g++ b/bin/x86_64-w64-mingw32-g++
deleted file mode 100755
index 82e0e21..0000000
--- a/bin/x86_64-w64-mingw32-g++
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-gcc b/bin/x86_64-w64-mingw32-gcc
deleted file mode 100755
index 9ec5fdd..0000000
--- a/bin/x86_64-w64-mingw32-gcc
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-gcc-4.8.3 b/bin/x86_64-w64-mingw32-gcc-4.8.3
deleted file mode 100755
index 9ec5fdd..0000000
--- a/bin/x86_64-w64-mingw32-gcc-4.8.3
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-gcc-ar b/bin/x86_64-w64-mingw32-gcc-ar
deleted file mode 100755
index 4a92d48..0000000
--- a/bin/x86_64-w64-mingw32-gcc-ar
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-gcc-nm b/bin/x86_64-w64-mingw32-gcc-nm
deleted file mode 100755
index 71e7ffa..0000000
--- a/bin/x86_64-w64-mingw32-gcc-nm
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-gcc-ranlib b/bin/x86_64-w64-mingw32-gcc-ranlib
deleted file mode 100755
index 854efd4..0000000
--- a/bin/x86_64-w64-mingw32-gcc-ranlib
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-gcov b/bin/x86_64-w64-mingw32-gcov
deleted file mode 100755
index 2cb52a8..0000000
--- a/bin/x86_64-w64-mingw32-gcov
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-gprof b/bin/x86_64-w64-mingw32-gprof
deleted file mode 100755
index 66d0c80..0000000
--- a/bin/x86_64-w64-mingw32-gprof
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-ld b/bin/x86_64-w64-mingw32-ld
deleted file mode 100755
index dae3ef3..0000000
--- a/bin/x86_64-w64-mingw32-ld
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-ld.bfd b/bin/x86_64-w64-mingw32-ld.bfd
deleted file mode 100755
index dae3ef3..0000000
--- a/bin/x86_64-w64-mingw32-ld.bfd
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-nm b/bin/x86_64-w64-mingw32-nm
deleted file mode 100755
index 4d8b2a3..0000000
--- a/bin/x86_64-w64-mingw32-nm
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-objcopy b/bin/x86_64-w64-mingw32-objcopy
deleted file mode 100755
index 904b9ec..0000000
--- a/bin/x86_64-w64-mingw32-objcopy
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-objdump b/bin/x86_64-w64-mingw32-objdump
deleted file mode 100755
index 5d08add..0000000
--- a/bin/x86_64-w64-mingw32-objdump
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-ranlib b/bin/x86_64-w64-mingw32-ranlib
deleted file mode 100755
index d0a91bc..0000000
--- a/bin/x86_64-w64-mingw32-ranlib
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-readelf b/bin/x86_64-w64-mingw32-readelf
deleted file mode 100755
index 502a1bf..0000000
--- a/bin/x86_64-w64-mingw32-readelf
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-size b/bin/x86_64-w64-mingw32-size
deleted file mode 100755
index 34ed74e..0000000
--- a/bin/x86_64-w64-mingw32-size
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-strings b/bin/x86_64-w64-mingw32-strings
deleted file mode 100755
index ef513be..0000000
--- a/bin/x86_64-w64-mingw32-strings
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-strip b/bin/x86_64-w64-mingw32-strip
deleted file mode 100755
index 39a737a..0000000
--- a/bin/x86_64-w64-mingw32-strip
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-widl b/bin/x86_64-w64-mingw32-widl
deleted file mode 100755
index 5f9bb90..0000000
--- a/bin/x86_64-w64-mingw32-widl
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-windmc b/bin/x86_64-w64-mingw32-windmc
deleted file mode 100755
index 97e214d..0000000
--- a/bin/x86_64-w64-mingw32-windmc
+++ /dev/null
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diff --git a/bin/x86_64-w64-mingw32-windres b/bin/x86_64-w64-mingw32-windres
deleted file mode 100755
index d49cb36..0000000
--- a/bin/x86_64-w64-mingw32-windres
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/ar b/x86_64-w64-mingw32/bin/ar
deleted file mode 100755
index 8571e38..0000000
--- a/x86_64-w64-mingw32/bin/ar
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/as b/x86_64-w64-mingw32/bin/as
deleted file mode 100755
index 30f2c63..0000000
--- a/x86_64-w64-mingw32/bin/as
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/c++ b/x86_64-w64-mingw32/bin/c++
deleted file mode 100755
index 82e0e21..0000000
--- a/x86_64-w64-mingw32/bin/c++
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/dlltool b/x86_64-w64-mingw32/bin/dlltool
deleted file mode 100755
index 36b6f16..0000000
--- a/x86_64-w64-mingw32/bin/dlltool
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/g++ b/x86_64-w64-mingw32/bin/g++
deleted file mode 100755
index 82e0e21..0000000
--- a/x86_64-w64-mingw32/bin/g++
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/gcc b/x86_64-w64-mingw32/bin/gcc
deleted file mode 100755
index 9ec5fdd..0000000
--- a/x86_64-w64-mingw32/bin/gcc
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/ld b/x86_64-w64-mingw32/bin/ld
deleted file mode 100755
index dae3ef3..0000000
--- a/x86_64-w64-mingw32/bin/ld
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/ld.bfd b/x86_64-w64-mingw32/bin/ld.bfd
deleted file mode 100755
index dae3ef3..0000000
--- a/x86_64-w64-mingw32/bin/ld.bfd
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/nm b/x86_64-w64-mingw32/bin/nm
deleted file mode 100755
index 4d8b2a3..0000000
--- a/x86_64-w64-mingw32/bin/nm
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/objcopy b/x86_64-w64-mingw32/bin/objcopy
deleted file mode 100755
index 904b9ec..0000000
--- a/x86_64-w64-mingw32/bin/objcopy
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/objdump b/x86_64-w64-mingw32/bin/objdump
deleted file mode 100755
index 5d08add..0000000
--- a/x86_64-w64-mingw32/bin/objdump
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/ranlib b/x86_64-w64-mingw32/bin/ranlib
deleted file mode 100755
index d0a91bc..0000000
--- a/x86_64-w64-mingw32/bin/ranlib
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/readelf b/x86_64-w64-mingw32/bin/readelf
deleted file mode 100755
index 502a1bf..0000000
--- a/x86_64-w64-mingw32/bin/readelf
+++ /dev/null
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diff --git a/x86_64-w64-mingw32/bin/strip b/x86_64-w64-mingw32/bin/strip
deleted file mode 100755
index 39a737a..0000000
--- a/x86_64-w64-mingw32/bin/strip
+++ /dev/null
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