rm unused file

charts/jupyterhub-outpost/templates/configmap_flavors

-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: {{ include "jupyterhub-outpost.fullname" . }}-flavors
-  labels:
-    {{- include "jupyter-hub-customizations.labels" . | nindent 4 }}
-data:
-  flavors.yaml: |-
-  {{- with .Values.flavors }}
-    flavors:
-      {{- toYaml . | nindent 4 }}
-  {{- end }}
\ No newline at end of file