Lint for version_added being the same as version_removed (#9610)
Lint for version_added being the same as version_removed (#9610)

Whether the versions are null, boolean or strings, this doesn't
communicate a lot of information.
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data