Remove request for debug logs in issue template.

They contain sensitive data and should not be shared publicly.

.github/ISSUE_TEMPLATE.md

@@ -22,8 +22,5 @@ Tell us what happens instead
 **Used theme**:
 
 <details><summary><b>Logs</b>:</summary>
-Insert logs here (if necessary)
-
-<!-- You can type `debugmode` in settings and then see ~/.TelegramDesktop/DebugLogs/log_...txt for log files.
-Type `debugmode` in settings again to disable logs. -->
+Insert log.txt here (if necessary)
 </details>