Cleaning up Aliases project.

Rx.NET/Source/System.Reactive.Observable.Aliases/System.Reactive.Observable.Aliases.csproj

@@ -13,9 +13,6 @@
     <FileAlignment>512</FileAlignment>
     <ProductSignAssembly>false</ProductSignAssembly>
   </PropertyGroup>
-  <PropertyGroup>
-    <StartupObject />
-  </PropertyGroup>
   <Import Project="..\Common.targets" />
   <PropertyGroup>
     <DocumentationFile>$(OutputPath)\$(AssemblyName).XML</DocumentationFile>
@@ -23,11 +20,6 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Observable.Aliases.cs" />