gep-713: remove the type field from targetRef. Also remove reference to undefined 'indirect' type in text

Author: sanjaypujare

geps/gep-713/index.md

@@ -463,7 +463,6 @@ spec:
       cachePolicy:
         includeQueryString: false
   targetRef:
-    type: direct
     kind: HTTPRoute
     name: example
 ```
@@ -1228,7 +1227,7 @@ Thus its status as EXPERIMENTAL DO NOT USE YET.
 
 Implementations MAY supply a Validating Admission Webhook that will return a
 WARNING message when an applied object is affected by some Policy, which may be 
-an inherited or indirect one.
+an inherited one.
 
 The warning message MAY include the name, namespace, apiGroup and Kind of relevant
 Policy objects.