Revert "Using clippath for adaptive icon drawable instead of bit..."

Revert "Fixing alpha tests for adaptive drawable"

Revert submission 19370745-no-clip-adaptive_icon

Reason for revert: Culprit cl for b/241010439
Reverted Changes:
Ieb428748a:Fixing alpha tests for adaptive drawable
I60ce42d91:Using clippath for adaptive icon drawable instead ...

Change-Id: I70a55c49ee6929a20a8bcda83284f5fe59256be0