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
diff --git a/cc/builder.go b/cc/builder.go
index c64243f6..e643584 100644
--- a/cc/builder.go
+++ b/cc/builder.go
@@ -150,8 +150,8 @@
 
 	clangTidy = pctx.AndroidStaticRule("clangTidy",
 		blueprint.RuleParams{
-			Command:     "rm -f $out && CLANG_TIDY=${config.ClangBin}/clang-tidy ${config.ClangTidyShellPath} $tidyFlags $in -- $cFlags && touch $out",
-			CommandDeps: []string{"${config.ClangBin}/clang-tidy", "${config.ClangTidyShellPath}"},
+			Command:     "rm -f $out && ${config.ClangBin}/clang-tidy $tidyFlags $in -- $cFlags && touch $out",
+			CommandDeps: []string{"${config.ClangBin}/clang-tidy"},
 		},
 		"cFlags", "tidyFlags")
 
diff --git a/cc/config/global.go b/cc/config/global.go
index 372ffc4..78f24f2 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -200,7 +200,6 @@
 	})
 	pctx.StaticVariable("ClangPath", "${ClangBase}/${HostPrebuiltTag}/${ClangVersion}")
 	pctx.StaticVariable("ClangBin", "${ClangPath}/bin")
-	pctx.StaticVariable("ClangTidyShellPath", "build/soong/scripts/clang-tidy.sh")
 
 	pctx.VariableFunc("ClangShortVersion", func(ctx android.PackageVarContext) string {
 		if override := ctx.Config().Getenv("LLVM_RELEASE_VERSION"); override != "" {
diff --git a/cc/makevars.go b/cc/makevars.go
index aa6fdea..dc91525 100644
--- a/cc/makevars.go
+++ b/cc/makevars.go
@@ -75,7 +75,6 @@
 	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", "${config.RSClangVersion}")
diff --git a/scripts/clang-tidy.sh b/scripts/clang-tidy.sh
deleted file mode 100755
index 04d0bdd..0000000
--- a/scripts/clang-tidy.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/bin/bash -e
-
-# Copyright 2018 Google Inc. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Wrapper script to remove clang compiler flags rejected by clang-tidy.
-# Inputs:
-#  Environment:
-#   CLANG_TIDY: path to the real clang-tidy program
-
-# clang-tidy doesn't recognize every flag that clang compiler does.
-# It gives clang-diagnostic-unused-command-line-argument warnings
-# to -Wa,* flags.
-# The -flto flags caused clang-tidy to ignore the -I flags,
-# see https://bugs.llvm.org/show_bug.cgi?id=38332.
-# -fsanitize and -fwhole-program-vtables need -flto.
-args=("${@}")
-n=${#args[@]}
-for ((i=0; i<$n; ++i)); do
-  case ${args[i]} in
-    -Wa,*|-flto|-flto=*|-fsanitize=*|-fsanitize-*|-fwhole-program-vtables)
-      unset args[i]
-      ;;
-  esac
-done
-${CLANG_TIDY} "${args[@]}"