Remove eugenebut from components/heap_profiling/in_process owners

Bug: None
Change-Id: Iaecc6494caa63cacefb8cd454b0b4e22c716307e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2633204
Auto-Submit: Eugene But <eugenebut@chromium.org>
Commit-Queue: Rohit Rao <rohitrao@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844917}

components/heap_profiling/in_process/OWNERS

 erikchen@chromium.org
-eugenebut@chromium.org
 rohitrao@chromium.org