Configure umbraco dependencies to only come from nuegt

Author: mattbrailsford

Directory.Packages.props

@@ -11,7 +11,6 @@
   </ItemGroup>
   <ItemGroup>
     <PackageVersion Include="Umbraco.Commerce.Cms.Startup" Version="13.0.0-rc1" />
-    <PackageVersion Include="Umbraco.Core" Version="13.0.0-rc1" /><!-- To remove after v13 RC1 -->
     <PackageVersion Include="Umbraco.Deploy.Infrastructure" Version="13.0.0-rc1" />
   </ItemGroup>
 </Project>

NuGet.config

@@ -11,10 +11,10 @@
       <package pattern="*" />
     </packageSource>
     <packageSource key="Umbraco Prereleases">
-      <package pattern="Umbraco.*" />
+      <package pattern="Umbraco.Commerce.*" />
     </packageSource>
     <packageSource key="Umbraco Nightly">
-      <package pattern="Umbraco.*" />
+      <package pattern="Umbraco.Commerce.*" />
     </packageSource>
   </packageSourceMapping>
 </configuration>