Edit the source mappings (#1131)

* remove the source mappings

* add package sources back

Author: MaddyDev

nuget.config

@@ -13,11 +13,9 @@
     <!-- key value for <packageSource> should match key values from <packageSources> element -->
     <packageSource key="nuget.local">
       <package pattern="Microsoft.Azure.WebJobs.Extensions.Sql" />
-    </packageSource>
-    <packageSource key="nuget.org">
       <package pattern="*" />
     </packageSource>
-    <packageSource key="nuget.local">
+    <packageSource key="nuget.org">
       <package pattern="*" />
     </packageSource>
   </packageSourceMapping>