stop configure element from double wrapping this

roles/matrix-awx/tasks/set_variables_element.yml

@@ -102,7 +102,7 @@
     line: "{{ item.key }}: '{{ item.value }}'"
     insertafter: '# Element Settings Start'
   with_dict:
-    'matrix_client_element_branding_welcomeBackgroundUrl': "'{{ matrix_client_element_branding_welcomeBackgroundUrl }}'"
+    'matrix_client_element_branding_welcomeBackgroundUrl': '{{ matrix_client_element_branding_welcomeBackgroundUrl }}'
   when: ( awx_https_string in matrix_client_element_branding_welcomeBackgroundUrl ) and ( matrix_client_element_branding_welcomeBackgroundUrl | length > 0 )
 
 - name: Save new 'Configure Element' survey.json to the AWX tower, template