Remove guard flag for SK_SUPPORT_LEGACY_BACKEND_OBJECTS on flutter.

Bug: skia:
Change-Id: I2c8c116f825278cae4001d169aaef42ce9a21873
Reviewed-on: https://skia-review.googlesource.com/125725
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
1 file changed