Remove empty lines in NuGet.config

Author: himgoyalmicro

NuGet.config

@@ -5,10 +5,8 @@
     <clear />
     <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
     <!--  Begin: Package sources from dotnet-runtime -->
-
     <!--  End: Package sources from dotnet-runtime -->
     <!--  Begin: Package sources from dotnet-winforms -->
-
     <!--  End: Package sources from dotnet-winforms -->
     <!--End: Package sources managed by Dependency Flow automation. Do not edit the sources above.-->
     <add key="dotnet-eng" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json" />
@@ -22,10 +20,8 @@
   <disabledPackageSources>
     <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
     <!--  Begin: Package sources from dotnet-runtime -->
-
     <!--  End: Package sources from dotnet-runtime -->
     <!--  Begin: Package sources from dotnet-winforms -->
-
     <!--  End: Package sources from dotnet-winforms -->
     <!--End: Package sources managed by Dependency Flow automation. Do not edit the sources above.-->
   </disabledPackageSources>