Revert "more preview changes and fixed video orientation"

Fix many issues of pictures not being taken on Qualcomm-powered devices,
such as the Nexus 5 or Nexus 7 (2013)

This reverts commit 89b7f9110f1def99473a29f93f45aa75fce32a40.

Conflicts:
	src/org/cyanogenmod/focal/CameraManager.java
	src/org/cyanogenmod/focal/widgets/SettingsWidget.java