PullRequestListController: Remove unused GHPerson initialisation

The ghOwner parameter in getPullRequests has not been used since change
I2eaf45dcc5acf when the API version was bumped to 1.48-SNAPSHOT.

Remove the parameter, and consequently remove the now-unused GHPerson
initialisation at the only place where getPullRequests is called.

Change-Id: Id7d4307e362337cef6fec312f72c47f883722b3e

github-plugin/src/main/java/com/googlesource/gerrit/plugins/github/wizard/PullRequestListController.java

diff --git a/github-plugin/src/main/java/com/googlesource/gerrit/plugins/github/wizard/PullRequestListController.java b/github-plugin/src/main/java/com/googlesource/gerrit/plugins/github/wizard/PullRequestListController.java
index 813094e..ef90d04 100644
--- a/github-plugin/src/main/java/com/googlesource/gerrit/plugins/github/wizard/PullRequestListController.java
+++ b/github-plugin/src/main/java/com/googlesource/gerrit/plugins/github/wizard/PullRequestListController.java
@@ -42,7 +42,6 @@
 import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.revwalk.RevWalk;
 import org.kohsuke.github.GHIssueState;
-import org.kohsuke.github.GHPerson;
 import org.kohsuke.github.GHPullRequest;
 import org.kohsuke.github.GHPullRequestCommitDetail;
 import org.kohsuke.github.GHRepository;
@@ -126,21 +125,14 @@
   private Map<String, List<GHPullRequest>> getPullRequests(
       GitHubLogin hubLogin, String organisation, String repository)
       throws IOException {
-    GHPerson ghOwner;
-    if (organisation.equals(hubLogin.getMyself().getLogin())) {
-      ghOwner = hubLogin.getMyself();
-    } else {
-      ghOwner = hubLogin.getHub().getOrganization(organisation);
-    }
     return getPullRequests(
         hubLogin,
-        ghOwner,
         projectsCache.byName(organisation + "/"
             + Strings.nullToEmpty(repository)));
   }
 
   private Map<String, List<GHPullRequest>> getPullRequests(GitHubLogin login,
-      GHPerson ghOwner, Iterable<NameKey> repos) throws IOException {
+      Iterable<NameKey> repos) throws IOException {
     int numPullRequests = 0;
     Map<String, List<GHPullRequest>> allPullRequests = Maps.newHashMap();
     try (ReviewDb db = schema.get()) {