fall out from issue/pull-request unification

src/main/java/org/kohsuke/github/GHPullRequest.java

@@ -55,13 +55,6 @@ public class GHPullRequest extends GHIssue {
         return user;
     }
 
-    /**
-     * Repository to which the pull request was sent.
-     */
-    public GHRepository getRepository() {
-        return getBase().getRepository();
-    }
-
     /**
      * This points to where the change should be pulled into,
      * but I'm not really sure what exactly it means.