hal_camera: remove video_device restriction

Disallowing other HALs access to video_device does not appear to be
enforceable.

(cherry picked from commit c26dd18aebdf7fccaafd307666a92549f155e5fd)

Bug: 37669506
Test: build policy. Neverallow rules are build time test and do not
      impact the policy binary.
Change-Id: Iea401de08a63f3261a461f67b85113a9d838e88a
1 file changed