[build] Remove obsolete gn flag

Bug: chromium:1164276
Change-Id: I5c257d407ed8c14037555cfcfd1550923bb79af2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2621079
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72011}

build_overrides/build.gni

@@ -32,9 +32,6 @@ use_perfetto_client_library = false
 # Some non-Chromium builds don't support building java targets.
 enable_java_templates = false
 
-# Some non-Chromium builds don't use Chromium's third_party/binutils.
-linux_use_bundled_binutils_override = true
-
 # Allows different projects to specify their own suppressions files.
 asan_suppressions_file = "//build/sanitizers/asan_suppressions.cc"
 lsan_suppressions_file = "//build/sanitizers/lsan_suppressions.cc"