[zlib] Drop -Wno-deprecated-non-prototype

After the minizip update, there are no more instances of this warning.

Bug: 1314867
Change-Id: I5ccbb2a41db104e3c2c3958cc175abf810295175
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5206612


Auto-Submit: Hans Wennborg <hans@chromium.org>
Reviewed-by: Adenilson Cavalcanti <cavalcantii@chromium.org>
Commit-Queue: Adenilson Cavalcanti <cavalcantii@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1248348}
NOKEYCHECK=True
GitOrigin-RevId: 09a7bce97b70ef641d5b59b354e8fe80b56e98b7