--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -1903,20 +1903,4 @@ config("sanitize_c_array_bounds") {
 config("sanitize_c_array_bounds") {
   if (!is_ubsan && is_clang && !(is_asan && target_cpu == "x86")) {
-    cflags = [
-      "-fsanitize=array-bounds",
-      "-fsanitize-trap=array-bounds",
-
-      # Some code users feature detection to determine if UBSAN (or any
-      # sanitizer) is enabled, they then do expensive debug like operations. We
-      # want to suppress this behaviour since we want to keep performance costs
-      # as low as possible while having these checks.
-      "-fsanitize-ignore-for-ubsan-feature=array-bounds",
-
-      # Because we've enabled array-bounds sanitizing we also want to suppress
-      # the related warning about "unsafe-buffer-usage-in-static-sized-array",
-      # since we know that the array bounds sanitizing will catch any out-of-
-      # bounds accesses.
-      "-Wno-unsafe-buffer-usage-in-static-sized-array",
-    ]
   }
 }