ATRONIX: Do not guard port/state

No idea why it needs to be guarded, but removing it doesn't seem
to break anything.

The memory issue can be shown by this example:
>> forever [modified? %/tmp/a.txt]

For every call to modified?, it tries to open a new port, and a new
port/state, which is protected from garbage collection, and thus it
causes a memory leak (even though it's still reachable, but never
free'd).

Author: Oldes

src/core/c-port.c

@@ -99,7 +99,6 @@
 	if (!IS_BINARY(state)) {
 		REBSER *data = Make_Binary(size);
 		REBREQ *req = (REBREQ*)STR_HEAD(data);
-		Guard_Series(data); // GC safe if no other references
 		req->clen = size;
 		CLEAR(STR_HEAD(data), size);
 		//data->tail = size; // makes it easier for ACCEPT to clone the port