Move prolog:common rule to gerrit-server root build file

Change-Id: Iacbff16b71d8464ccea6d2b631868e24a0605ec4
diff --git a/gerrit-war/BUILD b/gerrit-war/BUILD
index 66a0a47..865f940 100644
--- a/gerrit-war/BUILD
+++ b/gerrit-war/BUILD
@@ -18,8 +18,8 @@
         "//gerrit-pgm:init-api",
         "//gerrit-pgm:util",
         "//gerrit-reviewdb:server",
+        "//gerrit-server:prolog-common",
         "//gerrit-server:server",
-        "//gerrit-server/src/main/prolog:common",
         "//gerrit-sshd:sshd",
         "//lib:guava",
         "//lib:gwtorm",