Remove unused routes from appengine-web.xml and web.xml

Change-Id: I978d87cdba5533298cae3c89870b213d917d472c

appinventor/appengine/war/WEB-INF/appengine-web.xml

@@ -32,9 +32,7 @@
 
     <!-- These are not cached on purpose -->
     <include path="/ode/**.nocache.*" expiration="0s" />
-    <include path="/blocklyframe.html" expiration="0s" />
     <include path="/index.html" expiration="0s" />
-    <include path="/JSONGenerator/*" expiration="0s" />
 
     <include path="/ode/**.cache.*" expiration="365d" />
     <exclude path="/ode/**.gwt.rpc" />

appinventor/appengine/war/WEB-INF/web.xml

@@ -31,7 +31,6 @@
       <url-pattern>/reference/*</url-pattern>
       <url-pattern>/learn/*</url-pattern>
       <url-pattern>/about/*</url-pattern>
-      <url-pattern>/forum/*</url-pattern>
       <url-pattern>/b/*</url-pattern>
       <url-pattern>/remote_api/*</url-pattern>
     </web-resource-collection>