Add method to remove JsonRpc Handlers from the server

OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs

@@ -1912,6 +1912,12 @@ namespace OpenSim.Framework.Servers.HttpServer
                 m_rpcHandlers.Remove(method);
         }
 
+        public void RemoveJsonRPCHandler(string method)
+        {
+            lock(jsonRpcHandlers)
+                jsonRpcHandlers.Remove(method);
+        }
+
         public bool RemoveLLSDHandler(string path, LLSDMethod handler)
         {
             lock (m_llsdHandlers)

OpenSim/Framework/Servers/HttpServer/Interfaces/IHttpServer.cs

@@ -140,6 +140,8 @@ namespace OpenSim.Framework.Servers.HttpServer
         void RemoveStreamHandler(string httpMethod, string path);
 
         void RemoveXmlRPCHandler(string method);
+
+        void RemoveJsonRPCHandler(string method);
         
         string GetHTTP404(string host);