silence clang warning about always false, this is meant to keep naughty users…

silence clang warning about always false, this is meant to keep naughty users for the api from causing a crash, the check is fine

src/switch_core_session.c

@@ -452,7 +452,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_event_send(const char *uuid_
 
 SWITCH_DECLARE(void *) switch_core_session_get_private_class(switch_core_session_t *session, switch_pvt_class_t index)
 {
-	if (index >= SWITCH_CORE_SESSION_MAX_PRIVATES) {
+	if ((int)index >= SWITCH_CORE_SESSION_MAX_PRIVATES) {
 		return NULL;
 	}
 
@@ -465,7 +465,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_private_class(switch_cor
 {
 	switch_assert(session != NULL);
 
-	if (index >= SWITCH_CORE_SESSION_MAX_PRIVATES) {
+	if ((int)index >= SWITCH_CORE_SESSION_MAX_PRIVATES) {
 		return SWITCH_STATUS_FALSE;
 	}