PatchLineCommentsUtil#setCommentRevId(...): Remove unused return value

Change-Id: I4099195257df71d9fa1c9cd8e0dd10a3ad0c7b26
Signed-off-by: Edwin Kempin <ekempin@google.com>
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/PatchLineCommentsUtil.java b/gerrit-server/src/main/java/com/google/gerrit/server/PatchLineCommentsUtil.java
index 603f528..9190dc6 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/PatchLineCommentsUtil.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/PatchLineCommentsUtil.java
@@ -359,7 +359,7 @@
     return sort(result);
   }
 
-  public static RevId setCommentRevId(PatchLineComment c,
+  public static void setCommentRevId(PatchLineComment c,
       PatchListCache cache, Change change, PatchSet ps) throws OrmException {
     checkArgument(c.getPatchSetId().equals(ps.getId()),
         "cannot set RevId for patch set %s on comment %s", ps.getId(), c);
@@ -380,7 +380,6 @@
         throw new OrmException(e);
       }
     }
-    return c.getRevId();
   }
 
   public Collection<Ref> getDraftRefs(Change.Id changeId)