[Cin] ffmpeg.git.patch4 is not needed anymore?

[Phyllis Smith]

Andrew,
FINALLY, gg got rid of Patch 4 as you notified us August 26 (GIT update).
Thanks so much for the notify and sorry for the long delay.

for my usual rebuild of CinGG with ffmpeg.git I found ffmpeg.git.patch4
> is not applicable anymore, and ffmpeg log list this commit:
>
>
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