KAZOO-3530 no need for statistics module

kamailio/nodes-role.cfg

@@ -2,9 +2,6 @@
 #!ifndef TIMER-LOADED
 loadmodule "timer.so"
 #!endif
-#!ifndef STATISTICS-LOADED
-loadmodule "statistics.so"
-#!endif
 modparam("timer", "declare_timer", "NODES_TIMER=NODES_TIMER_ROUTE,5000,slow,enable");
 
 #!trydef UNIX_TO_GREGORIAN 62167219200