Removed unneeded line from App.config on HttpListener project.

servicestack/src/SelfHost/App.config

@@ -16,7 +16,6 @@
          from the default of 1 per logical processor to 40 per logical processor. This seems to be
          a little conservative as http://support.microsoft.com/kb/821268 recommends 50.-->
     <add key="minWorkerThreadsPerLogicalProcessor" value="40" />
-    <add key="maxWorkerThreadsPerLogicalProcessor" value="100" />
     <!-- Disable ServiceStack features -->
     <add key="DisabledFeatures" value="MetaData, Soap, Soap11, Soap12" />
   </appSettings>