Don't try to unlink() non-UNIX socket paths.

gck-rpc-dispatch.c

@@ -2601,7 +2601,9 @@ void gck_rpc_layer_uninitialize(void)
 	pkcs11_socket = -1;
 
 	/* Delete our unix socket */
-	if (pkcs11_socket_path[0])
+	if (pkcs11_socket_path[0] &&
+	    strncmp(pkcs11_socket_path, "tcp://", strlen("tcp://")) != 0 &&
+	    strncmp(pkcs11_socket_path, "tls://", strlen("tls://")) != 0)
 		unlink(pkcs11_socket_path);
 	pkcs11_socket_path[0] = 0;