Remove extraneous preference

resources/qml/Preferences/GeneralPage.qml

@@ -88,8 +88,6 @@ UM.PreferencesPage
         showOverhangCheckbox.checked = boolCheck(UM.Preferences.getValue("view/show_overhang"))
         UM.Preferences.resetPreference("view/show_xray_warning");
         showXrayErrorCheckbox.checked = boolCheck(UM.Preferences.getValue("view/show_warning"))
-        UM.Preferences.resetPreference("view/show_xray_warning_message");
-        showXrayErrorMessageCheckbox.checked = boolCheck(UM.Preferences.getValue("view/show_warning_message"))
         UM.Preferences.resetPreference("view/center_on_select");
         centerOnSelectCheckbox.checked = boolCheck(UM.Preferences.getValue("view/center_on_select"))
         UM.Preferences.resetPreference("view/invert_zoom");
@@ -360,24 +358,6 @@ UM.PreferencesPage
                 }
             }
 
-            UM.TooltipArea
-            {
-                width: childrenRect.width;
-                height: childrenRect.height;
-
-                text: catalog.i18nc("@info:tooltip", "Highlight missing or extraneous surfaces of the model using warning signs. The toolpaths will often be missing parts of the intended geometry.")
-
-                CheckBox
-                {
-                    id: showXrayErrorMessageCheckbox
-
-                    checked: boolCheck(UM.Preferences.getValue("view/show_xray_warning_message"))
-                    onClicked: UM.Preferences.setValue("view/show_xray_warning_message",  checked)
-
-                    text: catalog.i18nc("@option:check", "Display model errors");
-                }
-            }
-
             UM.TooltipArea
             {
                 width: childrenRect.width;