Update Web.config

Remove explicit projectId from web.config.

Author: Martin Makarský

DancingGoat/Web.config

@@ -10,7 +10,6 @@
     <add key="UnobtrusiveJavaScriptEnabled" value="true" />
     <add key="ResponsiveWidths" value="200,400,600,800,1000,1200,1400,1600,2000,4000" />
     <add key="DefaultProjectId" value="975bf280-fd91-488c-994c-2f04416e5ee3" />
-    <add key="ProjectId" value="975bf280-fd91-488c-994c-2f04416e5ee3" />
   </appSettings>
   <system.web>
     <authentication mode="None"/>