Remove Aspire.Hosting.Orleans dependency on Azure hosting (dotnet#4373)

Author: attilah

src/Aspire.Hosting.Orleans/Aspire.Hosting.Orleans.csproj

@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\Aspire.Hosting.Azure\Aspire.Hosting.Azure.csproj" />
+    <ProjectReference Include="..\Aspire.Hosting\Aspire.Hosting.csproj" />
   </ItemGroup>
 
 </Project>