Revert "12767907: Add a package dependency on Microsoft.RL"

This reverts commit c586920.

Author: Tparuchuri

NuGet.Config

@@ -10,7 +10,6 @@
       Used for azure-sdk-tools repo until issue https://github.com/Azure/azure-sdk-tools/issues/1329 is addressed
     -->
     <add key="azure-sdk-tools" value="https://azuresdkartifacts.blob.core.windows.net/azure-sdk-tools/index.json" />
-    <add key="air-msrai-decisionservice-Consumption" value="https://msazure.pkgs.visualstudio.com/one/_packaging/air-msrai-decisionservice-Consumption/nuget/v3/index.json" />
   </packageSources>
   <disabledPackageSources>
     <clear />