Remove __bionic_libgcc_unwind_symbols from version script

Bug: http://b/26004476
Change-Id: Iaa468de4cbcc94e88badc5cde0f4421c710c1f38
diff --git a/libc/libc.arm.map b/libc/libc.arm.map
index 69aa272..d7a9176 100644
--- a/libc/libc.arm.map
+++ b/libc/libc.arm.map
@@ -1411,7 +1411,6 @@
     __ashrdi3; # arm
     __bionic_brk; # arm x86 mips
     __bionic_libgcc_compat_symbols; # arm x86
-    __bionic_libgcc_unwind_symbols; # arm
     __dso_handle; # arm
     __gnu_Unwind_Backtrace; # arm
     __gnu_unwind_execute; # arm
diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index 76cb168..2572e40 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1438,7 +1438,6 @@
     __ashrdi3; # arm
     __bionic_brk; # arm x86 mips
     __bionic_libgcc_compat_symbols; # arm x86
-    __bionic_libgcc_unwind_symbols; # arm
     __dso_handle; # arm
     __gnu_Unwind_Backtrace; # arm
     __gnu_unwind_execute; # arm