Camera2: Remove manual changes from CameraCharacteristics

The INFO_DEVICE_ID entry in CameraCharacteristics was modified by
hand.This means that anytime metadata-generate is executed, it
will create an unnecessary diff reverting the manual change.

To prevent polluting other changes, this CL reverts the manual diff
by running metadata-generate.

Test: Builds successfully.
Test: Only documentation change. No functional changes.
Change-Id: I6b0c56163f599c7fcce152b2fe298639b7ee6313