Revert "add new default_image so we can test the PR"

This reverts commit 5829038.

Author: Adam-D-Lewis

.github/actions/init-local/action.yml

@@ -75,12 +75,6 @@ runs:
                 size: 1Gi
         EOM
 
-        # Change jupyterhub image for PR testing purposes
-        cat >> '${{ steps.metadata.outputs.config }}' <<- EOM
-        default_images:
-          jupyterhub: quay.io/nebari/nebari-jupyterhub:jhub-fancy-profiles
-        EOM
-
     - shell: bash
       run: |
         # Display Nebari config