Bluetooth: ISO: Make bt_iso_remove_data_path static

Make bt_iso_remove_data_path static as it is only used by iso.c

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
diff --git a/subsys/bluetooth/host/iso.c b/subsys/bluetooth/host/iso.c
index 40b4750..30a3e87 100644
--- a/subsys/bluetooth/host/iso.c
+++ b/subsys/bluetooth/host/iso.c
@@ -376,7 +376,7 @@
 	}
 }
 
-void bt_iso_remove_data_path(struct bt_conn *iso)
+static void bt_iso_remove_data_path(struct bt_conn *iso)
 {
 	BT_DBG("%p", iso);
 
diff --git a/subsys/bluetooth/host/iso_internal.h b/subsys/bluetooth/host/iso_internal.h
index d78c76e..8dcf613 100644
--- a/subsys/bluetooth/host/iso_internal.h
+++ b/subsys/bluetooth/host/iso_internal.h
@@ -149,5 +149,3 @@
 
 /* Process incoming data for a connection */
 void bt_iso_recv(struct bt_conn *iso, struct net_buf *buf, uint8_t flags);
-
-void bt_iso_remove_data_path(struct bt_conn *iso);