Update onboard-platform-ops.md (#2717)

.github/ISSUE_TEMPLATE/onboard-platform-ops.md

@@ -162,8 +162,6 @@ Your onboarding buddy will create a separate ticket tied to this one to track th
 - [ ] Install `caulking` git leak prevention by following the [README](https://github.com/cloud-gov/caulking/blob/master/README.md)
 - [ ] Verify `caulking` by running `make audit` and pasting a screenshot as a comment on this GitHub issue
 - [ ] Set GPG signing set up for GitHub (instructions [here](https://docs.google.com/document/d/11UDxvfkhncyLEs-NUCniw2u54j4uQBqsR2SBiLYPUZc/edit)) and paste the output of `git config commit.gpgsign` as a comment on this GitHub issue
-- [ ] Run [this script](https://github.com/cloud-gov/cg-scripts/blob/master/write-pgp-pub-key-s3.sh)
-to upload your GPG key to an S3 bucket containing the trusted keys for our team
 
 ### Install a development environment for cloud.gov