Capture/Replay: Erase texture from mCachedTextureLevelData When the caller issues a glCompressedTexImage call, we need to delete the cached texture data, since the texture size/data are being respecified and the old data is now stale. This fixes MEC for "Klondike Adventures". Bug: angleproject:5549 Change-Id: Ie788e2bf39f7a29ec6bc55f95d6f570f1d22d659 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2633071 Commit-Queue: Tim Van Patten <timvp@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com>