Revert "BurstMode: only show slide animation after final shot"

This reverts commit 0ac2baba4bcecba15cf2fb6e74b9c469791eb338.
Revert "Camera: add exposure and JPEG quality settings to video camera"

This reverts commit 6c9ad37cda027c2bfad771aab4e9075995e41da3.
Revert "camera: add much more scene & focus modes"

This reverts commit 30d398c06b3c51362487f663c4a2ef39f26c3129.