Remove obsolete upstream release workflows

.github/workflows/cut_new_release_candidate.yml

@@ -1,41 +0,0 @@
-# A workflow to cut a Galaxy OSS release candidate on the OSS release branch.
-
-name: Cut New Release Candidate
-on:
-  workflow_dispatch:
-
-jobs:
-  verify_release_branch:
-    name: Verify OSS release branch
-    runs-on: ubuntu-latest
-    steps:
-      - name: Verify branch
-        run: |
-          case "$GITHUB_REF_NAME" in
-            oss_release/*) ;;
-            *)
-              echo "::error::Can only create OSS release candidates on an oss_release/* branch"
-              exit 1
-              ;;
-          esac
-        shell: bash
-
-  create_release_candidate:
-    name: Create OSS Release Candidate
-    uses: ./.github/workflows/create_release.yml
-    needs: verify_release_branch
-    secrets: inherit
-
-  update_channel_versions:
-    name: Update channel_versions.json
-    needs:
-      - create_release_candidate
-    runs-on: ubuntu-latest
-    steps:
-      - name: Invoke update workflow in channel-versions repository
-        uses: peter-evans/repository-dispatch@28959ce8df70de7be546dd1250a005dd32156697 # v4.0.1
-        with:
-          repository: warpdotdev/channel-versions
-          token: ${{ secrets.CHANNEL_VERSIONS_REPOSITORY_DISPATCH_TOKEN }}
-          event-type: update-channel-versions
-    

.github/workflows/cut_new_releases.yml

@@ -1,38 +0,0 @@
-# A workflow to cut the Galaxy OSS release.
-
-name: Cut New Releases
-on:
-  schedule:
-    # Run this job every morning at 3am EST.
-    - cron: "0 8 * * *"
-
-  workflow_dispatch:
-
-jobs:
-  verify_master:
-    name: Verify master branch
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check for master branch
-        run: |
-          [ "$GITHUB_REF" = "refs/heads/master" ] || (echo "::error::Can only cut new releases on the master branch" && exit 1)
-        shell: bash
-
-  create_release:
-    name: Create OSS Release
-    uses: ./.github/workflows/create_release.yml
-    needs: verify_master
-    secrets: inherit
-
-  update_channel_versions:
-    name: Update channel_versions.json
-    needs:
-      - create_release
-    runs-on: ubuntu-latest
-    steps:
-      - name: Invoke update workflow in channel-versions repository
-        uses: peter-evans/repository-dispatch@28959ce8df70de7be546dd1250a005dd32156697 # v4.0.1
-        with:
-          repository: warpdotdev/channel-versions
-          token: ${{ secrets.CHANNEL_VERSIONS_REPOSITORY_DISPATCH_TOKEN }}
-          event-type: update-channel-versions