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This just crops the status bar and the navbar from the screenshot we take.
This makes the animation look right in all cases, except for when we are full screen:
in that scenario we're cropping away too much.

Also removed the clone view (was no longer used) and cleaned FireflyRenderer
a bit.

Bug: 5318512
Change-Id: I37189a576f19937c2cae4ec368f26ac0725a1b62