Remove symlink lib-boostrap

next CL will populate mips64r6 lib and lib-boostrap in real directory
previous symlink to android-9/arch-mips which is mips64r2

Change-Id: I59baeb4e5b6f32e0c52c6a0d1a54985808f0534f
diff --git a/ndk/platforms/android-L/arch-mips64/lib-bootstrap b/ndk/platforms/android-L/arch-mips64/lib-bootstrap
deleted file mode 120000
index 7c180e0..0000000
--- a/ndk/platforms/android-L/arch-mips64/lib-bootstrap
+++ /dev/null
@@ -1 +0,0 @@
-../../android-9/arch-mips/lib-bootstrap
\ No newline at end of file