udp: restore original flow without else block

commit 7fff679f added else block and
left continue that didn't make code flow following any easier.

modules/access/udp.c

@@ -264,10 +264,10 @@ static void* ThreadRead( void *data )
             if( errno == EINTR )
                 break;
             continue;
-        } else {
-            pkt->i_buffer = len;
-            block_FifoPut( sys->fifo, pkt );
         }
+
+        pkt->i_buffer = len;
+        block_FifoPut( sys->fifo, pkt );
     }
 
     block_FifoWake( sys->fifo );