Clean up unused references.

ATxCommon/ATxCommon.csproj

@@ -40,9 +40,6 @@
     <Reference Include="System.DirectoryServices.AccountManagement" />
     <Reference Include="System.Management" />
     <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>

ATxConfigTest/ATXConfigTest.csproj

@@ -38,11 +38,6 @@
     </Reference>
     <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="AutoTxConfigTest.cs" />

ATxService/ATxService.csproj

@@ -61,20 +61,8 @@
     <Reference Include="System.Configuration" />
     <Reference Include="System.Configuration.Install" />
     <Reference Include="System.Core" />
-    <Reference Include="System.DirectoryServices" />
-    <Reference Include="System.DirectoryServices.AccountManagement" />
     <Reference Include="System.Management" />
-    <Reference Include="System.Management.Automation, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\..\..\..\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Management.Automation\v4.0_3.0.0.0__31bf3856ad364e35\System.Management.Automation.dll</HintPath>
-    </Reference>
-    <Reference Include="System.Windows.Forms" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System.Data" />
     <Reference Include="System.ServiceProcess" />
-    <Reference Include="System.Xml" />
     <Reference Include="WindowsBase" />
   </ItemGroup>
   <ItemGroup>

ATxTray/ATXTray.csproj

@@ -57,14 +57,8 @@
     </Reference>
     <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.Deployment" />
     <Reference Include="System.Drawing" />
     <Reference Include="System.Windows.Forms" />
-    <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AutoTxTray.cs" />