UI: Remove unused action

UI/forms/OBSBasic.ui

@@ -1768,17 +1768,6 @@
     <string>Basic.MainMenu.View.SourceIcons</string>
    </property>
   </action>
-  <action name="toggleLog">
-   <property name="checkable">
-    <bool>true</bool>
-   </property>
-   <property name="checked">
-    <bool>true</bool>
-   </property>
-   <property name="text">
-    <string>LogViewer</string>
-   </property>
-  </action>
  </widget>
  <customwidgets>
   <customwidget>