This removes the output parameter returning the number of stack slot for
the frame from {LookupExceptionHandlerInTable}. This is a remnant from
when V8 had dynamically sized frames (aka. full-codegen), which is no
longer the case. The frame size can easily be computed independent of
the exception handler found during the lookup.

R=jkummerow@chromium.org
BUG=v8:9810

Change-Id: I0c7e04c75d7e24f2731e22370833005c17d0297a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1847155Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64159}