Removes a deprecated call to CTGetCoreTextVersion() when compiling for iOS 14+.

When compiling for iOS with a min deployment target of 14.0+,
CTGetCoreTextVersion() is marked as deprecated. The Core Text version is
used to enable fallback behavior when the current CoreText version is
known to behave badly. However, the version of CoreText that ships with
iOS 14.0 is greater than the versions which require fallback
behavior. Instead of keeping a map from iOS version to CoreText version,
as recommended by the deprecation message, simply disable all fallback
behavior when compiling for iOS 14.0+.

Change-Id: Ic81a1718247e434cb84d451bbdb8f810f3fe2555
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/434042
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
1 file changed