[rbp/omxplayer] Remove unused variable m_pTempOverlayPicture
[rbp/omxplayer] Remove unused Pause/Resume functions

These should be implemented with clock component
[rbp/omxplayer] Remove call to OMXLateCount that will be removed
[rbp/omxplayer] Remove unused clock code
Merge pull request #2799 from popcornmix/cosmetics

[rbp/omxplayer] [Cosmetics] Remove unused code