vty: drop unused function

Change-Id: I01f3773ca6a9b6d4e28ca2f59c944c6d48918dd1
diff --git a/src/pcu_vty.c b/src/pcu_vty.c
index dff331f..5c3f625 100644
--- a/src/pcu_vty.c
+++ b/src/pcu_vty.c
@@ -265,7 +265,7 @@
 		}
 	}
 
-	return pcu_vty_config_write_pcu_ext(vty);
+	return CMD_SUCCESS;
 }
 
 /* per-BTS configuration */