GitHub Actions: stop creating CI releases

Net net this has caused more problems than it solved. Too often binaries
were missing or broken. Instead 'release equivalent' binaries are now
consistently posted to downloads/test via a Webhook.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

.github/workflows/linux-trusty-5.12.yml

@@ -23,16 +23,6 @@ jobs:
         rm -rf /install-root/include/libdivecomputer
         bash -x subsurface/.github/workflows/scripts/linux-in-container-build.sh
 
-    - name: create CI release
-      if: github.event_name == 'push'
-      uses: ./.github/actions/release
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        GITHUB_REPO: ${{ github.repository }}
-        REF: ${{ github.ref }}
-        COMMIT: ${{ github.sha }}
-        BIN1: ./Subsurface.AppImage
-
     - name: prepare PR artifacts
       if: github.event_name == 'pull_request'
       run: |