[photos] Remove NIToolbarPhotoViewController and NIPhotoScrubberView from the public header.
[photos] Remove NIToolbarPhotoViewController and NIPhotoScrubberView from the public header.

PiperOrigin-RevId: 320594189

jverkoey/nimbus,jverkoey/nimbus,jverkoey/nimbus,jverkoey/nimbus,jverkoey/nimbus,jverkoey/nimbus,jverkoey/nimbus