Remove unused method from {Ref,Project}Control

Rescoping controls to a different user was removed in I3fd524d26a.
Since then, this code is no longer used.

Change-Id: Ibcd98cbed6f222474e3d0d34278b86b7af710f5e
diff --git a/java/com/google/gerrit/server/permissions/ProjectControl.java b/java/com/google/gerrit/server/permissions/ProjectControl.java
index 4a4ea37..46bf45f 100644
--- a/java/com/google/gerrit/server/permissions/ProjectControl.java
+++ b/java/com/google/gerrit/server/permissions/ProjectControl.java
@@ -98,23 +98,6 @@
     state = ps;
   }
 
-  ProjectControl forUser(CurrentUser who) {
-    ProjectControl r =
-        new ProjectControl(
-            uploadGroups,
-            receiveGroups,
-            permissionFilter,
-            changeControlFactory,
-            permissionBackend,
-            refFilterFactory,
-            identifiedUserFactory,
-            who,
-            state);
-    // Not per-user, and reusing saves lookup time.
-    r.allSections = allSections;
-    return r;
-  }
-
   ForProject asForProject() {
     return new ForProjectImpl();
   }
diff --git a/java/com/google/gerrit/server/permissions/RefControl.java b/java/com/google/gerrit/server/permissions/RefControl.java
index 762dfbe..b324e77 100644
--- a/java/com/google/gerrit/server/permissions/RefControl.java
+++ b/java/com/google/gerrit/server/permissions/RefControl.java
@@ -77,14 +77,6 @@
     return projectControl.getUser();
   }
 
-  RefControl forUser(CurrentUser who) {
-    ProjectControl newCtl = projectControl.forUser(who);
-    if (relevant.isUserSpecific()) {
-      return newCtl.controlForRef(refName);
-    }
-    return new RefControl(identifiedUserFactory, newCtl, refName, relevant);
-  }
-
   /** Is this user a ref owner? */
   boolean isOwner() {
     if (owner == null) {