Dedup system shared libraries.

These shouldn't differ by target. Right now only mips64 does, and
that's a bug.

Change-Id: Ic941ede85ba1bc07d3316a55639ba71a6afc9630
diff --git a/core/binary.mk b/core/binary.mk
index e18f8c8..96cde0c 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -24,7 +24,7 @@
   endif
 else
   ifeq ($(LOCAL_SYSTEM_SHARED_LIBRARIES),none)
-      my_system_shared_libraries := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES)
+      my_system_shared_libraries := libc libm
   else
       my_system_shared_libraries := $(LOCAL_SYSTEM_SHARED_LIBRARIES)
   endif
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index a2d3dee..7818e3e 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -190,6 +190,4 @@
 
 $(combo_2nd_arch_prefix)TARGET_PACK_MODULE_RELOCATIONS := true
 
-$(combo_2nd_arch_prefix)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libm
-
 $(combo_2nd_arch_prefix)TARGET_LINKER := /system/bin/linker
diff --git a/core/combo/TARGET_linux-arm64.mk b/core/combo/TARGET_linux-arm64.mk
index 0e4c6f1..863befe 100644
--- a/core/combo/TARGET_linux-arm64.mk
+++ b/core/combo/TARGET_linux-arm64.mk
@@ -161,6 +161,4 @@
 
 TARGET_PACK_MODULE_RELOCATIONS := true
 
-TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libm
-
 TARGET_LINKER := /system/bin/linker64
diff --git a/core/combo/TARGET_linux-mips.mk b/core/combo/TARGET_linux-mips.mk
index 962aa45..66461d9 100644
--- a/core/combo/TARGET_linux-mips.mk
+++ b/core/combo/TARGET_linux-mips.mk
@@ -164,6 +164,4 @@
 
 $(combo_2nd_arch_prefix)TARGET_PACK_MODULE_RELOCATIONS := true
 
-$(combo_2nd_arch_prefix)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libm
-
 $(combo_2nd_arch_prefix)TARGET_LINKER := /system/bin/linker
diff --git a/core/combo/TARGET_linux-mips64.mk b/core/combo/TARGET_linux-mips64.mk
index c09a491..7aaded5 100644
--- a/core/combo/TARGET_linux-mips64.mk
+++ b/core/combo/TARGET_linux-mips64.mk
@@ -173,6 +173,4 @@
 
 TARGET_PACK_MODULE_RELOCATIONS := true
 
-TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm
-
 TARGET_LINKER := /system/bin/linker64
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk
index f6dbcb8..0b87920 100644
--- a/core/combo/TARGET_linux-x86.mk
+++ b/core/combo/TARGET_linux-x86.mk
@@ -144,8 +144,6 @@
 
 $(combo_2nd_arch_prefix)TARGET_PACK_MODULE_RELOCATIONS := true
 
-$(combo_2nd_arch_prefix)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libm
-
 $(combo_2nd_arch_prefix)TARGET_LINKER := /system/bin/linker
 
 $(combo_2nd_arch_prefix)TARGET_GLOBAL_YASM_FLAGS := -f elf32 -m x86
diff --git a/core/combo/TARGET_linux-x86_64.mk b/core/combo/TARGET_linux-x86_64.mk
index 7b9cd7b..bf443b3 100644
--- a/core/combo/TARGET_linux-x86_64.mk
+++ b/core/combo/TARGET_linux-x86_64.mk
@@ -151,8 +151,6 @@
 TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o
 TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
 
-TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libm
-
 TARGET_LINKER := /system/bin/linker64
 
 TARGET_GLOBAL_YASM_FLAGS := -f elf64 -m amd64