removed bit of code that didn't belong

Author: John Campion

src/MongoFramework/MongoDbSet.cs

@@ -268,15 +268,5 @@ public virtual IQueryable<TEntity> AsNoTracking()
 		#endregion
 
 	}
-
-	public static class DbSetExtensions 
-	{
-		public static IQueryable<TEntity> NoTracking<TEntity>(this IMongoDbSet<TEntity> dbSet) where TEntity : class
-		{
-			var queryable = dbSet.Context.Query<TEntity>();
-			var provider = queryable.Provider as IMongoFrameworkQueryProvider<TEntity>;
-			return queryable;
-		}
-	}
 
 }