message: Remove x86 from build_ios_libs.
  iOS 12.0 is the new iOS deployment target and iOS 10 is the maximum
  deployment target for 32-bit targets.
  Cr-Commit-Position: refs/heads/master@{#34415}
diff: @@ -30,7 +30,7 @@ import find_depot_tools
  SDK_OUTPUT_DIR = os.path.join(SRC_DIR, 'out_ios_libs')
  SDK_FRAMEWORK_NAME = 'WebRTC.framework'
  -DEFAULT_ARCHS = ENABLED_ARCHS = ['arm64', 'x64', 'x86']
  +DEFAULT_ARCHS = ENABLED_ARCHS = ['arm64', 'x64']
  IOS_DEPLOYMENT_TARGET = '12.0'
  LIBVPX_BUILD_VP9 = False
  