Fix an assert when overwriting TexImage binding Fix an assert when overwriting a image binding with multiple eglBindTexImage calls on the same texture. Bug: angleproject:8521 Change-Id: Ie7247017fd73c523b889278ec19a09ecf0683692 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5272912 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Auto-Submit: Kimmo Kinnunen <kkinnunen@apple.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>