Camera2: Fix video button size

Fixed this - http://review.cyanogenmod.org/#/c/71250/ (Ruukku Puu's comment)

Change-Id: Ia21b64e398e3b7d5aba0ac7a35cc506ffedd05a6

Conflicts:
	res/drawable-hdpi-v19/btn_shutter_video_default.png
	res/drawable-mdpi-v19/btn_shutter_video_default.png
	res/drawable-xhdpi-v19/btn_shutter_video_default.png
	res/drawable-xxhdpi-v19/btn_shutter_video_default.png
Camera2: Remove unused strings

Change-Id: Ib51dddc7856bddd3706d166eee6bc7ae9495b049
Automatic translation import

Change-Id: I4575e0f6e164d7546c8ed263e6b754a7465115db