Removed unsued defined namespaces

DocX/Bookmark.cs

-using System;
-using System.Linq;
-using System.Collections.Generic;
-
-namespace Novacode
+namespace Novacode
 {
     public class Bookmark
     {

DocX/Content.cs

-using System;
-using System.Linq;
+using System.Linq;
 using System.Collections.Generic;
 using System.Xml.Linq;
 

DocX/ContentCollection.cs

 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 
 namespace Novacode
 {

DocX/DocumentTypes.cs

-using System;
-using System.Linq;
-using System.Collections.Generic;
-
-namespace Novacode
+namespace Novacode
 {
     public enum DocumentTypes
     {

DocX/ExtensionsHeadings.cs

 using System;
-using System.Collections.Generic;
 using System.ComponentModel;
-using System.IO;
-using System.Linq;
 using System.Reflection;
-using System.Text;
-using System.Xml.Linq;
-using Novacode;
-
 
 namespace Novacode
 {
             {
                 return enumAttributes[0].Description;
             }
-            else
-            {
-                return enumValue.ToString();
-            }
+            return enumValue.ToString();
         }
 
         /// <summary>
 
         }
     }
-    
 }

DocX/HelperFunctions.cs

 using System.Security.Principal;
 using System.Text;
 using System.Xml.Linq;
-using System.Xml;
 
 namespace Novacode
 {

DocX/Paragraph.cs

 using System;
-using System.IO;
 using System.Linq;
 using System.Drawing;
 using System.Xml.Linq;

DocX/Section.cs

 using System.Collections.Generic;
-using System.IO.Packaging;
 using System.Xml.Linq;
 
 namespace Novacode

DocX/Table.cs

                 design = value;
 
                 if (design == TableDesign.None)
-                {
-                    if (style != null)
-                        style.Remove();
-                }
+                    style.Remove();
 
                 if (design == TableDesign.Custom)
                 {
                 }
                 else
                 {
-
                     switch (design)
                     {
                         case TableDesign.TableNormal:

DocX/_Extensions.cs

 using System.Collections.Generic;
 using System.Linq;
 using System.Drawing;
-using System.ComponentModel;
-using System.IO;
-using System.Reflection;
-using System.Text;
 using System.Xml.Linq;
 
 namespace Novacode