Remove invalid entry in RELEASE_NOTES

Bug: skia:8243
Change-Id: I85f2777e872a257f56031301654b9da8532a9555
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/233077
Auto-Submit: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
1 file changed