ref(github-comments): remove temp have qs text

[cathteng]

To prepare for rollout we should remove the Have questions? Reach out to us in the #proj-github-pr-comments channel. from the comment text.

Manual revert of #51553

[codecov]

Codecov Report

Merging #52291 (55ca328) into master (ee44c6b) will increase coverage by 0.00%.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #52291   +/-   ##
=======================================
  Coverage   79.30%   79.31%           
=======================================
  Files        4904     4904           
  Lines      205491   205482    -9     
  Branches    35131    35131           
=======================================
- Hits       162974   162970    -4     
+ Misses      37538    37533    -5     
  Partials     4979     4979           

Impacted Files	Coverage Δ
src/sentry/tasks/integrations/github/pr_comment.py	100.00% <ø> (ø)
...components/events/eventTagsAndScreenshot/index.tsx	82.35% <ø> (ø)
...events/eventTagsAndScreenshot/screenshot/index.tsx	72.50% <ø> (+3.45%)	⬆️
static/app/components/group/pluginActions.tsx	0.00% <ø> (ø)
...nents/replays/breadcrumbs/replayTimelineEvents.tsx	0.00% <ø> (ø)
...atic/app/components/replays/walker/splitCrumbs.tsx	100.00% <ø> (ø)
...tic/app/data/forms/organizationGeneralSettings.tsx	80.00% <ø> (ø)
static/app/utils/replays/replayDataUtils.tsx	87.09% <ø> (-2.10%)	⬇️
static/app/utils/replays/replayReader.tsx	75.00% <ø> (ø)
static/app/views/issueList/utils.tsx	90.00% <ø> (ø)
... and 1 more

... and 2 files with indirect coverage changes