This removes three unneeded includes from wasm-code-manager.h, and adds
four that were missing.

R=ahaas@chromium.org

Bug: v8:7490, v8:8834
Change-Id: I0f0f367c0ff748cc1561689b7e2badf3a7a01ca5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1513717Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60168}