Performance experiment: disable control-flow analysis.

This CL will be used to test for potential performance regressions (or
improvements) that we might cause by disabling this optimization pass.

It will be reverted in ~1 day.

Change-Id: I26b7687c341eb6d81231406381c39869cfccf6d6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/381259
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
223 files changed