Remove not needed using statements

Author: Suiram1701

WebUntisAPI.Client/Models/ClassregEvent.cs

@@ -1,10 +1,6 @@
 using Newtonsoft.Json;
 using System;
-using System.Collections.Generic;
 using System.Diagnostics;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using WebUntisAPI.Client.Converter;
 
 namespace WebUntisAPI.Client.Models

WebUntisAPI.Client/Models/GetClassregEventsRequestModel.cs

@@ -1,9 +1,5 @@
 using Newtonsoft.Json;
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using WebUntisAPI.Client.Converter;
 
 namespace WebUntisAPI.Client.Models

WebUntisAPI.Client/Models/GetPersonIdRequestModel.cs

@@ -1,9 +1,4 @@
 using Newtonsoft.Json;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace WebUntisAPI.Client.Models
 {

WebUntisAPI.Client/Models/News.cs

@@ -1,9 +1,5 @@
 using Newtonsoft.Json;
-using System;
 using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace WebUntisAPI.Client.Models
 {

WebUntisAPI.Client/Models/NewsMessage.cs

@@ -1,9 +1,4 @@
 using Newtonsoft.Json;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace WebUntisAPI.Client.Models
 {