fix: remove cosmetic allowCommandsAtEnd setting (#5745)

Any new functionality we'd want to add here would probably not be what
people who checked this setting actually wanted it do be. It's best to
start fresh if we want to add similar functionality.

src/widgets/settingspages/CommandPage.cpp

@@ -123,10 +123,6 @@ CommandPage::CommandPage()
         });
     }
 
-    layout.append(
-        this->createCheckBox("Also match the trigger at the end of the message",
-                             getSettings()->allowCommandsAtEnd));
-
     QLabel *text = layout.emplace<QLabel>(HELP_TEXT).getElement();
     text->setWordWrap(true);
     text->setStyleSheet("color: #bbb");