TASK: Remove unused legacy template files (#1887)

* TASK: Remove unused legacy files

Author: johnhenley

Dnn.CommunityForums/09.08.00.txt

@@ -0,0 +1,4 @@
+DesktopModules/ActiveForums/config/templates/AddThis.txt
+DesktopModules/ActiveForums/config/templates/ForumView-4.3.txt
+DesktopModules/ActiveForums/config/templates/TopicsView-4.3.txt
+DesktopModules/ActiveForums/config/templates/TopicView-4.3.txt

Dnn.CommunityForums/DnnCommunityForums.dnn

@@ -540,6 +540,7 @@
 	    <component type="Cleanup" version="09.00.00" fileName="09.00.00.txt" />
         <component type="Cleanup" version="09.06.00" fileName="09.06.00.txt" />
         <component type="Cleanup" version="09.07.00" fileName="09.07.00.txt" />
+        <component type="Cleanup" version="09.08.00" fileName="09.08.00.txt" />
       </components>
     </package>
     <package name="Active Forums What's New" type="Module" version="09.08.00">