[zlib] Sync with zlib 1.2.13, patch 2 of N

Ported:
 - Remove deleted assembler code references.
 - Remove redundant check in gz_look().
 - Avoid undefined negation behavior if windowBits is INT_MIN.
 - Provide missing function prototypes in CRC-32 code. [fredgan]
 - Don't try to include unistd.h on Windows with LLVM.
 - zlib 1.2.13

Bug: 1374743
Change-Id: I57542da8da09731669a6ddee5afad81808fa9432
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4006381


Commit-Queue: Adenilson Cavalcanti <cavalcantii@chromium.org>
Reviewed-by: Noel Gordon <noel@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1067981}
NOKEYCHECK=True
GitOrigin-RevId: e2e230364bcf8fe55dde5dca8310da6906ae64ad