--- src/base/allocator/partition_allocator/src/partition_alloc/BUILD.gn.orig
+++ src/base/allocator/partition_allocator/src/partition_alloc/BUILD.gn
@@ -292,12 +292,6 @@ if (is_clang_or_gcc) {
       # but they're not backwards compatible. Use base::CPU::has_mte()
       # beforehand to confirm or use indirect functions (ifuncs) to select
       # an MTE-specific implementation at dynamic link-time.
-      cflags = [
-        "-Xclang",
-        "-target-feature",
-        "-Xclang",
-        "+mte",
-      ]
     }
   }