Specify language = "objc" for Objective-C's use of cc_common.configure_features
Specify language = "objc" for Objective-C's use of cc_common.configure_features

This automatically sets all the features needed for Objective-C, and
allows us to get rid of a bunch of custom starlark code.

PiperOrigin-RevId: 457486535
(cherry picked from commit dd5be9edbc86ffc2c5bfb4d9ac0d28798680a873)

bazelbuild/rules_apple,bazelbuild/rules_apple,bazelbuild/rules_apple,bazelbuild/rules_apple