Status bar: Centered clock improvements:

Thanks to SlimRoms for the solution:
https://github.com/SlimRoms/frameworks_base/commit/acdbf3043fcf9c8e4559cb77c81a0249682ba746

Use AlphaOptimizedLinearLayout to hide, fade in and fade out the centered clock.

As this isn`t needed anymore, this reverts commit: https://github.com/XXMrHyde/android_frameworks_base/commit/bdc727d6e7928954acb39c53ceb53fc87a5f47d5