Remove reference to System.Web that was only used by a documentation comment

Author: sharwell

src/corelib/Core/UriPart.cs

@@ -1,8 +1,5 @@
 namespace net.openstack.Core
 {
-    extern alias web;
-    using HttpUtility = web.System.Web.HttpUtility;
-
     /// <summary>
     /// Represents a specific part of a URI.
     /// </summary>
@@ -18,7 +15,7 @@ public enum UriPart
         /// Represents a non-specific URL part, where all characters except unreserved characters and the characters <c>(</c>, <c>)</c>, <c>!</c>, and <c>*</c> are percent-encoded.
         /// </summary>
         /// <remarks>
-        /// When used with <see cref="UriUtility.UriEncode(string, UriPart)"/>, this URI part matches the behavior of <see cref="HttpUtility.UrlEncode(string)"/>, with the exception of space characters (this method percent-encodes space characters as <c>%20</c>).
+        /// When used with <see cref="UriUtility.UriEncode(string, UriPart)"/>, this URI part matches the behavior of <see cref="M:System.Web.HttpUtility.UrlEncode(string)"/>, with the exception of space characters (this method percent-encodes space characters as <c>%20</c>).
         /// </remarks>
         AnyUrl,
 

src/corelib/corelib.v3.5.csproj

@@ -57,9 +57,6 @@
     <Reference Include="System.Threading">
       <HintPath>..\packages\TaskParallelLibrary.1.0.2856.0\lib\Net35\System.Threading.dll</HintPath>
     </Reference>
-    <Reference Include="System.Web">
-      <Aliases>web</Aliases>
-    </Reference>
     <Reference Include="WindowsBase" />
   </ItemGroup>
   <ItemGroup>

src/corelib/corelib.v4.0.csproj

@@ -53,9 +53,6 @@
     <Reference Include="System.Core" />
     <Reference Include="System.Runtime.Serialization" />
     <Reference Include="System.ServiceModel" />
-    <Reference Include="System.Web">
-      <Aliases>web</Aliases>
-    </Reference>
     <Reference Include="WindowsBase" />
   </ItemGroup>
   <ItemGroup>