Fixes test compilation issue in ReviewersResolverIT

Method call results must be used. At least that's necessary for
importing to google.

Change-Id: I00a1d61235599028526637d8562a8c4ff192a807
Signed-off-by: Milutin Kristofic <milutin@google.com>
diff --git a/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersResolverIT.java b/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersResolverIT.java
index 4b2f47a..a6e30ab 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersResolverIT.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersResolverIT.java
@@ -119,7 +119,7 @@
   public void accountExactResolve() throws Exception {
     String username = "user1";
     String almostMatchingUsername = "user";
-    accountCreator.create(username);
+    var unused = accountCreator.create(username);
 
     Set<Account.Id> reviewers =
         resolver.resolve(