RebaseChangeOp: Remove initialization of variable to default value

Change-Id: Ib08bed6b7921faffae4cda87e76b0aaacd975e76
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/change/RebaseChangeOp.java b/gerrit-server/src/main/java/com/google/gerrit/server/change/RebaseChangeOp.java
index 9c51425..1e2bb4b 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/change/RebaseChangeOp.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/change/RebaseChangeOp.java
@@ -68,7 +68,7 @@
   private CommitValidators.Policy validate;
   private boolean forceContentMerge;
   private boolean copyApprovals = true;
-  private boolean detailedCommitMessage = false;
+  private boolean detailedCommitMessage;
   private boolean postMessage = true;
 
   private RevCommit rebasedCommit;