Reason for revert: Fix bugs causing the new code to fail. Original issue's description: > Revert of Release camera statistics after switching camera on CameraCapturer. (patchset #1 id:1 of https://codereview.webrtc.org/2353263002/ ) > > Reason for revert: > Breaks bots. > > Original issue's description: > > Release camera statistics after switching camera on CameraCapturer. > > > > BUG=webrtc:6397 > > TBR=magjed@webrtc.org > > NOTRY=True > > > > Committed: https://crrev.com/d5e9237b303e5fe253dc6530fbcf939921f4eaed > > Cr-Commit-Position: refs/heads/master@{#14323} > > TBR=magjed@webrtc.org > # Skipping CQ checks because original CL landed less than 1 days ago. > NOPRESUBMIT=true > NOTREECHECKS=true > NOTRY=true > BUG=webrtc:6397 > > Committed: https://crrev.com/ad5d65845f5c859d0564811a4eea68e1efdb8450 > Cr-Commit-Position: refs/heads/master@{#14324} TBR=magjed@webrtc.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=webrtc:6397 Review-Url: https://codereview.webrtc.org/2357893002 Cr-Commit-Position: refs/heads/master@{#14330}