ENH: can not cancel print job after FINISH_STAGE

Change-Id: I91eefd8b9c7ec0d3d2b8a37e0348bb9a8442f3bc

src/slic3r/GUI/Jobs/PrintJob.cpp

@@ -294,11 +294,6 @@ void PrintJob::process()
         }
     }
 
-    if (was_canceled()) {
-        update_status(curr_percent, printjob_cancel_str);
-        return;
-    }
-
     if (result < 0) {
         if (result == BAMBU_NETWORK_ERR_FTP_LOGIN_DENIED) {
             msg_text = upload_failed_str;