Remove database and reviewdb from gerrit.config

Change-Id: Iaaeaa67d8591d03dc7c12472deb794524969f80a
diff --git a/fpm/etc/gerrit.config b/fpm/etc/gerrit.config
index b479d90..c6abc85 100644
--- a/fpm/etc/gerrit.config
+++ b/fpm/etc/gerrit.config
@@ -1,8 +1,5 @@
 [gerrit]
 	basePath = git
-[database]
-	type = h2
-	database = db/ReviewDB
 [index]
 	type = LUCENE
 [auth]