Bug
1658986 Part 3: Remove NativelayerCA checks of invalid regions. r=mstange
These checks were designed to identify if we have a logic error in the
display rects or update rects we get from our callers to
HandlePartialUpdate. We've gathered enough evidence that there is such an
error and we've opened Bug
1818540 to address it. There's no longer a good
reason to keep these checks around, as they just crash the browser for
users rather than risk showing them invalid pixels (which we're fairly
sure are valid pixels).
Differential Revision: https://phabricator.services.mozilla.com/
D172287