Remove other variants for the same functionality such as IsCallable(),
TaggedIsCallable(), and !TaggedIsSmi() && IsCallable().

Change-Id: I33bcdf7699c1adf2330b3c11f482f7bbfcd927b3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2107515
Commit-Queue: Timothy Gu <timothygu@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66973}