Summary:
I encountered an issue when building with fastlane gym / xcodebuild where glog would not build because of missing config.h header file. I tracked it down to the ios-configure-glog.sh script that ended up error-ing because of missing valid c compiler. I guess it didn't enter the if to set c compiler env in xcodebuild and that env doesn't have proper values set like it does in xcode so just removing this check fixed it. Also tested that it still works properly in xcode.
Closes https://github.com/facebook/react-native/pull/14267
Differential Revision: D5285691
Pulled By: javache
fbshipit-source-id: df5315926c2d2d78806618df3d9c9bbbb974d1ea