Remove obsolete flag android.content.pm.support_minor_versions_in_minsdkversion

All changes that were guarded by
android.content.pm.support_minor_versions_in_minsdkversion have been
updated to be guarded by android.sdk.major_minor_versioning_scheme
instead. Remove the now obsolete flag.

Bug: 377689343
Test: m
Flag: EXEMPT no need to flag the removal of obsolete flags
Change-Id: I6c70dd0975d44c651713104d9e96dc93cf564fc2