ChangeIT: Remove unused local variable

Change-Id: I74d07d7a87d41daa70d91e29ac6f1a2a16c9c767
diff --git a/javatests/com/google/gerrit/acceptance/api/change/ChangeIT.java b/javatests/com/google/gerrit/acceptance/api/change/ChangeIT.java
index 69b8e38..b3a5e2d 100644
--- a/javatests/com/google/gerrit/acceptance/api/change/ChangeIT.java
+++ b/javatests/com/google/gerrit/acceptance/api/change/ChangeIT.java
@@ -2214,13 +2214,12 @@
 
     // notify unrelated account as TO
     String email = "user2@example.com";
-    Account.Id user2Id =
-        accountOperations
-            .newAccount()
-            .username("user2")
-            .preferredEmail(email)
-            .fullname("User2")
-            .create();
+    accountOperations
+        .newAccount()
+        .username("user2")
+        .preferredEmail(email)
+        .fullname("User2")
+        .create();
     setApiUser(user);
     recommend(r.getChangeId());
     setApiUser(admin);