The InProcessCookieCacheEnabled was briefly needed while working on some multi-process architecture changes, but has long since lost any utility. We should remove it from the experimental feature flag set to reduce complexity.
<rdar://problem/102915771>
Pull request: https://github.com/WebKit/WebKit/pull/7091
Committed 257387@main (636481109f85): <https://commits.webkit.org/257387@main> Reviewed commits have been landed. Closing PR #7091 and removing active labels.