Remove our clang-tidy wrapper

Looks like the reason for it existing has been fixed. It should probably
just be removed.

Bug: None
Test: WITH_TIDY=1 m

Change-Id: I770b2fec4ac44f265ff31731c9c0bd4da14d5b0f

cc/makevars.go

@@ -75,7 +75,6 @@ func makeVarsProvider(ctx android.MakeVarsContext) {
 	ctx.Strict("LLVM_OBJCOPY", "${config.ClangBin}/llvm-objcopy")
 	ctx.Strict("LLVM_STRIP", "${config.ClangBin}/llvm-strip")
 	ctx.Strict("PATH_TO_CLANG_TIDY", "${config.ClangBin}/clang-tidy")
-	ctx.Strict("PATH_TO_CLANG_TIDY_SHELL", "${config.ClangTidyShellPath}")
 	ctx.StrictSorted("CLANG_CONFIG_UNKNOWN_CFLAGS", strings.Join(config.ClangUnknownCflags, " "))
 
 	ctx.Strict("RS_LLVM_PREBUILTS_VERSION", "${config.RSClangVersion}")