Revert "net/packet: rx_owner_map depends on pg_vec"

This reverts commit 8732c25423556ed668c738a583f7d070d5bcb5bf.

"net/packet: rx_owner_map depends on pg_vec" is not needed since
the bug it fixes isn't present.
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index e352c6d..1f86bf0 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4426,10 +4426,8 @@
 	}
 
 out_free_pg_vec:
-	if (pg_vec) {
-		bitmap_free(rx_owner_map);
+	if (pg_vec)
 		free_pg_vec(pg_vec, order, req->tp_block_nr);
-	}
 out:
 	return err;
 }