[owners] Same owners for src/heap/*factory* and src/objects.

The methods in the v8::internal::Factory deal with creating the objects
described in src/objects, so there's no point in having different sets
of owners for them.

Bug: none
Change-Id: I05b48535bd81d37796e3f741156a059be8554759
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3359634Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78557}

src/heap/OWNERS

@@ -4,5 +4,4 @@ hpayer@chromium.org
 mlippautz@chromium.org
 omerkatz@chromium.org
 
-per-file *factory*=leszeks@chromium.org
-per-file read-only-*=delphick@chromium.org
+per-file *factory*=file:../objects/OWNERS