undo env try out in admin test workflow

.github/workflows/test-admin-interface.yml

@@ -4,14 +4,12 @@ on:
   push:
     branches:
       - separate-admin-interface-workflow
-env:
-  SERVICE: Admin Interface
 
 jobs:
   # only (but most important) job from this workflow required for pull requests
   # check results serve as run conditions for all other jobs here 
   files-changed:
-    name: Detect File Changes - ${{ env.SERVICE }}
+    name: Detect File Changes - Admin Interface
     runs-on: ubuntu-latest
     outputs:
       admin: ${{ steps.changes.outputs.admin }}
@@ -25,8 +23,6 @@ jobs:
           token: ${{ github.token }}
           filters: .github/file-filters.yml
           list-files: shell
-      - name: Try out env variable
-        run: echo "This service's name is: $SERVICE"
 
   
   build_test: