R1:37532a0bf001

Remove various additional calls to getCallsign()

Summary: Ref T4245. These are all straightforward to remove.

Test Plan:
- Edited paths in a package.
- Ran `bin/audit delete --repositories ...` with various identifiers.
- Searched by repository for `R3`, `rAAAA` in Harbormaster.
- Did a Herald dry run on a commit.
- Browsed commits, made comments.
- Viewed a Releeph product list.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4245

Differential Revision: https://secure.phabricator.com/D14927