Remove unnecessary client dep from testutil

Change-Id: Ie118ec37d7b8f03fe234da2771b58290a6def43e

gerrit-server/BUCK

diff --git a/gerrit-server/BUCK b/gerrit-server/BUCK
index 5e992cd9..091c9b7 100644
--- a/gerrit-server/BUCK
+++ b/gerrit-server/BUCK
@@ -90,7 +90,6 @@
     '//gerrit-common:server',
     '//gerrit-cache-h2:cache-h2',
     '//gerrit-lucene:lucene',
-    '//gerrit-reviewdb:client',
     '//gerrit-reviewdb:server',
     '//lib:guava',
     '//lib:gwtorm',