Revert "mondrianwifi: media: Add HFR attributes for VideoEncoderCap"

This was fixed in the frameworks and not needed anymore.

This reverts commit 335035888ea57a7f579b0956d527e44ee933ec4f.

Change-Id: I1b9607b9a96772927d5d84c03d328f5b70beb728
mondrianwifi: camera: Code cleanup

Change-Id: I6465f70f47844030cbbc247cb4d38c965454cacc