devlink: remove unused code

Unused code causes warnings, removed.
diff --git a/devlink/devlink.c b/devlink/devlink.c
index e2e0413..68bdf39 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -634,35 +634,6 @@
 	return 0;
 }
 
-static bool dl_dump_filter(struct dl *dl, struct nlattr **tb)
-{
-	struct dl_opts *opts = &dl->opts;
-	struct nlattr *attr_bus_name = tb[DEVLINK_ATTR_BUS_NAME];
-	struct nlattr *attr_dev_name = tb[DEVLINK_ATTR_DEV_NAME];
-	struct nlattr *attr_port_index = tb[DEVLINK_ATTR_PORT_INDEX];
-
-	if (opts->present & DL_OPT_HANDLE &&
-	    attr_bus_name && attr_dev_name) {
-		const char *bus_name = mnl_attr_get_str(attr_bus_name);
-		const char *dev_name = mnl_attr_get_str(attr_dev_name);
-
-		if (strcmp(bus_name, opts->bus_name) != 0 ||
-		    strcmp(dev_name, opts->dev_name) != 0)
-			return false;
-	}
-	if (opts->present & DL_OPT_HANDLEP &&
-	    attr_bus_name && attr_dev_name && attr_port_index) {
-		const char *bus_name = mnl_attr_get_str(attr_bus_name);
-		const char *dev_name = mnl_attr_get_str(attr_dev_name);
-		uint32_t port_index = mnl_attr_get_u32(attr_port_index);
-
-		if (strcmp(bus_name, opts->bus_name) != 0 ||
-		    strcmp(dev_name, opts->dev_name) != 0 ||
-		    port_index != opts->port_index)
-			return false;
-	}
-	return true;
-}
 
 static void cmd_dev_help(void)
 {
@@ -714,19 +685,6 @@
 	__pr_out_port_handle(bus_name, dev_name, port_index);
 }
 
-static void pr_out_port_handle_nice(struct dl *dl, struct nlattr **tb)
-{
-	const char *bus_name;
-	const char *dev_name;
-	uint32_t port_index;
-
-	bus_name = mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]);
-	dev_name = mnl_attr_get_str(tb[DEVLINK_ATTR_DEV_NAME]);
-	port_index = mnl_attr_get_u32(tb[DEVLINK_ATTR_PORT_INDEX]);
-
-	__pr_out_port_handle_nice(dl, bus_name, dev_name, port_index);
-}
-
 static void pr_out_dev(struct nlattr **tb)
 {
 	pr_out_handle(tb);