Drop the new llvm-rs-cc.

To introduce the -Wall/-Werror flag.

Change-Id: I9242e0f73478c249cea226244e667ff15fee5301
diff --git a/tools/darwin/llvm-rs-cc b/tools/darwin/llvm-rs-cc
index d2f4d88..e77b507 100755
--- a/tools/darwin/llvm-rs-cc
+++ b/tools/darwin/llvm-rs-cc
Binary files differ
diff --git a/tools/linux/llvm-rs-cc b/tools/linux/llvm-rs-cc
index 5ba5229..7af9a49 100755
--- a/tools/linux/llvm-rs-cc
+++ b/tools/linux/llvm-rs-cc
Binary files differ