Remove most of the None DEPS entries for iOS

DEPS

Index: DEPS
diff --git a/DEPS b/DEPS
index b183b8ec2b1c576b10f5f45ba246e31bd998d731..a58ae906f7d3a05437d2f66b680f40a5be6a37da 100644
--- a/DEPS
+++ b/DEPS
@@ -370,39 +370,14 @@ deps_os = {
      Var('chromium_git') + '/chromium/deps/class-dump.git' + '@' + '89bd40883c767584240b4dade8b74e6f57b9bdab',
 
     # Code that's not needed due to not building everything
-    'src/build/util/support': None,
     'src/chrome/test/data/perf/canvas_bench': None,
     'src/chrome/test/data/perf/frame_rate/content': None,
-    'src/media/cdm/ppapi/api': None,
     'src/native_client': None,
-    'src/third_party/bidichecker': None,
-    'src/third_party/brotli/src': None,
     'src/third_party/cld_2/src': None,
     'src/third_party/ffmpeg': None,
     'src/third_party/hunspell_dictionaries': None,
     'src/third_party/hunspell': None,
-    'src/third_party/libc++/trunk': None,
-    'src/third_party/libc++abi/trunk': None,
-    'src/third_party/libexif/sources': None,
-    'src/third_party/libjpeg_turbo': None,
-    'src/third_party/libsrtp': None,
-    'src/third_party/opus/src': None,
-    'src/third_party/openmax_dl': None,
-    'src/third_party/ots': None,
-    'src/third_party/pymox/src': None,
-    'src/third_party/safe_browsing/testing': None,
-    'src/third_party/scons-2.0.1': None,
-    'src/third_party/sfntly/cpp/src': None,
-    'src/third_party/swig/Lib': None,
-    'src/third_party/usrsctp/usrsctplib': None,
-    'src/third_party/v8-i18n': None,
-    'src/third_party/webdriver/pylib': None,
     'src/third_party/webgl': None,
-    'src/third_party/webpagereplay': None,
-    'src/third_party/WebKit/LayoutTests/w3c/web-platform-tests': None,
-    'src/third_party/WebKit/LayoutTests/w3c/csswg-test': None,
-    'src/third_party/yasm/source/patched-yasm': None,
-    'src/tools/page_cycler/acid3': None,
   },
   'mac': {
     'src/chrome/tools/test/reference_build/chrome_mac':