Summary:
Don't lock out other non-iOS platforms (e.g. Windows) with an overly
specific check. This change allows this JS file to be re-used instead of copied and modified. There was one other instance of this pattern, but I'll submit it separate for easier cherry-picking.
Tested Android and iOS playground on simulators.
[GENERAL] [ENHANCEMENT] - some core ReactNative JS library files will be easier to re-use across RN platforms.
Closes https://github.com/facebook/react-native/pull/18308
Differential Revision: D7230803
Pulled By: hramos
fbshipit-source-id: 11e03183535a7453cee00dc1e795c27f2fd2bf5d