configure: remove compiler detection
The GCC version is no longer relevant since only 4.8 and newer are supported. It's probably safe to assume clang on mac since V8 does so too.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
The GCC version is no longer relevant since only 4.8 and newer are supported. It's probably safe to assume clang on mac since V8 does so too.