ci: buildbot is decommissioned, so remove prscript refs

(cherry picked from commit 372fc26739)

.github/PULL_REQUEST_TEMPLATE.md

@@ -11,8 +11,6 @@ Describe changes:
 -
 -
 
-[PRScript](https://redmine.openinfosecfoundation.org/projects/suricata/wiki/PRscript) output (if applicable):
-
 #suricata-verify-pr:
 #suricata-verify-repo:
 #suricata-verify-branch:

doc/devguide/codebase/contributing/code-submission-process.rst

@@ -37,13 +37,10 @@ A github pull request is actually just a pointer to a branch in your tree. Githu
 #. Incremental pull requests need to describe changes since the last PR
 #. Link to the ticket(s) that are addressed to it.
 #. When fixing an issue, update the issue status to ``In Review`` after submitting the PR.
-#. Links to the prscript builds*
 #. Pull requests are automatically tested using github actions (https://github.com/OISF/suricata/blob/master/.github/workflows/builds.yml).
    Failing builds won't be considered and should be closed immediately.
 #. Pull requests that change, or add a feature should include a documentation update commit
 
-  (*) access to prscript is limited to trusted devs. For the rest of you, ask Victor, Eric, Andreas or Jason to run it for you.
-
 Tests and QA
 ~~~~~~~~~~~~