Removed unused usings.

Author: Marc Sallin

SQLite.CodeFirst/DbInitializers/SqliteInitializerBase.cs

@@ -3,7 +3,6 @@
 using System.Data.Entity.ModelConfiguration.Conventions;
 using SQLite.CodeFirst.Convention;
 using System.IO;
-using System.Linq;
 using SQLite.CodeFirst.Extensions;
 using SQLite.CodeFirst.Utility;
 

SQLite.CodeFirst/Internal/Builder/CreateIndexStatementBuilder.cs

@@ -1,10 +1,8 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.ComponentModel.DataAnnotations.Schema;
 using System.Data.Entity.Core.Metadata.Edm;
 using System.Data.Entity.Infrastructure.Annotations;
-using System.Globalization;
 using System.Linq;
 using SQLite.CodeFirst.Builder.NameCreators;
 using SQLite.CodeFirst.Extensions;