Remove the -S option when invoking the bindings generator

to allow implicit 'import site' by the python runtime.

NOTRY=true
BUG=425932

Review URL: https://codereview.chromium.org/674503002

git-svn-id: svn://svn.chromium.org/blink/trunk@184195 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/bindings/modules/v8/generated.gyp

@@ -210,7 +210,6 @@
       # Update that regex if command line changes (other than changing flags)
       'action': [
         'python',
-        '-S',  # skip 'import site' to speed up startup
         '<(bindings_scripts_dir)/idl_compiler.py',
         '--cache-dir',
         '<(bindings_scripts_output_dir)',