Revert "SpaServices.Extensions will first ship to work with 2.0.0 dependencies" because it breaks the build. Will need to find a different way to enforce this.

This reverts commit 105422b.

Author: SteveSandersonMS

src/Microsoft.AspNetCore.SpaServices.Extensions/Microsoft.AspNetCore.SpaServices.Extensions.csproj

@@ -10,13 +10,11 @@
   </ItemGroup>
 
   <ItemGroup>
-    <!--
-      Dependencies are currently hard-coded to 2.0.0 because that's what the first shipping
-      version of Microsoft.AspNetCore.SpaServices.Extensions will have to work with.
-      Later, all this functionality will get folded into the regular SpaServices package.
-    -->
-    <PackageReference Include="Microsoft.AspNetCore.SpaServices" Version="2.0.0" NoWarn="KRB4002" />
-    <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.0.0" NoWarn="KRB4002" />
+    <ProjectReference Include="..\Microsoft.AspNetCore.SpaServices\Microsoft.AspNetCore.SpaServices.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.StaticFiles" />
   </ItemGroup>
 
 </Project>