Remove DEFAULT_FORBIDDEN_CAPABILITIES from NetworkRequest

aosp/2873154 disabled DEFAULT_FORBIDDEN_CAPABILITIES to avoid crash when
the module rolls back.
DEFAULT_FORBIDDEN_CAPABILITIES was introduced to avoid existing users
getting callback from local networks.
But aosp/2936050 fixed this issue by introducing compat flag.
So this CL cleans up DEFAULT_FORBIDDEN_CAPABILITIES code

Test: TH
Bug: 319212206
Change-Id: I125800cb3dd029f190056c8715ab9a741a83a234
1 file changed