[clang-tools-extra] [clang-tidy][NFC] Remove another ad-hoc exclusion for system headers (PR #190094)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-tidy

Author: Victor Chernyakin (localspook)

<details>
<summary>Changes</summary>

This is another ad-hoc approach made obsolete by #<!-- -->151035.

---
Full diff: https://github.com/llvm/llvm-project/pull/190094.diff


1 Files Affected:

- (modified) clang-tools-extra/clang-tidy/portability/StdAllocatorConstCheck.cpp (-7) 


``````````diff
diff --git a/clang-tools-extra/clang-tidy/portability/StdAllocatorConstCheck.cpp b/clang-tools-extra/clang-tidy/portability/StdAllocatorConstCheck.cpp
index ff58505e8f87c..d82b34e803242 100644
--- a/clang-tools-extra/clang-tidy/portability/StdAllocatorConstCheck.cpp
+++ b/clang-tools-extra/clang-tidy/portability/StdAllocatorConstCheck.cpp
@@ -54,13 +54,6 @@ void StdAllocatorConstCheck::registerMatchers(MatchFinder *Finder) {
 
 void StdAllocatorConstCheck::check(const MatchFinder::MatchResult &Result) {
   const auto *T = Result.Nodes.getNodeAs<TypeLoc>("type_loc");
-  if (!T)
-    return;
-  // Exclude TypeLoc matches in STL headers.
-  if (isSystem(Result.Context->getSourceManager().getFileCharacteristic(
-          T->getBeginLoc())))
-    return;
-
   diag(T->getBeginLoc(),
        "container using std::allocator<const T> is a deprecated libc++ "
        "extension; remove const for compatibility with other standard "

``````````

</details>


https://github.com/llvm/llvm-project/pull/190094