Remove unused functions
Remove unused functions

Signed-off-by: Ivan Losev <5e3362b7a59c167a8e67793f6851c6aebc1b7f0f@intel.com>

Intel-Media-SDK/MediaSDK,Intel-Media-SDK/MediaSDK,Intel-Media-SDK/MediaSDK,Intel-Media-SDK/MediaSDK,Intel-Media-SDK/MediaSDK