[stable/eventrouter] fix configmap (#18117)

Configmap have duplicate keys:
  line 14: mapping key "apiVersion" already defined at line 3
  line 15: mapping key "data" already defined at line 13

Signed-off-by: Dinar Valeev <k0da@opensuse.org>

stable/eventrouter/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 description: A Helm chart for eventruter (https://github.com/heptiolabs/eventrouter)
 name: eventrouter
-version: 0.2.1
+version: 0.2.2
 appVersion: 0.2
 home: https://github.com/heptiolabs/eventrouter
 sources:

stable/eventrouter/templates/configmap.yaml

@@ -4,8 +4,6 @@ metadata:
   name: {{ template "eventrouter.fullname" . }}
   labels: {{ include "eventrouter.labels" . | indent 4 }}
   namespace: {{ .Release.Namespace }}
-data:
-apiVersion: v1
 data:
   config.json: |-
     {