Revert "[Chromecast] Clear video plane image on app start"

This reverts commit 0cf17084db1e209b35c992badf0dfaf8931e85ad

Bug: internal b/119639315
Test: CQ
Change-Id: Ibbd4e8469895299f938549bb146641504643d3f3
Reviewed-on: https://chromium-review.googlesource.com/c/1387464
Reviewed-by: Luke Halliwell <halliwell@chromium.org>
Commit-Queue: Marzena Dell'Aquila <mdellaquila@google.com>
Cr-Commit-Position: refs/heads/master@{#619805}
1 file changed