remove deprecated code

src/Core/Models/Api/FolderDataModel.cs

@@ -1,14 +0,0 @@
-using Bit.Core.Models.Table;
-
-namespace Bit.Core.Models.Api
-{
-    public class FolderDataModel
-    {
-        public FolderDataModel(Folder folder)
-        {
-            Name = folder.Name;
-        }
-
-        public string Name { get; set; }
-    }
-}

src/Core/Models/Api/Response/CipherHistoryResponseModel.cs

@@ -1,16 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-namespace Bit.Core.Models.Api
-{
-    [Obsolete]
-    public class CipherHistoryResponseModel : ResponseModel
-    {
-        public CipherHistoryResponseModel()
-            : base("cipherHistory")
-        { }
-
-        public IEnumerable<CipherResponseModel> Revised { get; set; } = new List<CipherResponseModel>();
-        public IEnumerable<string> Deleted { get; set; } = new List<string>();
-    }
-}

src/Core/Models/Api/Response/CipherResponseModel.cs

@@ -31,21 +31,6 @@ namespace Bit.Core.Models.Api
             }
         }
 
-        [Obsolete]
-        public CipherMiniResponseModel(Folder folder, string obj = "cipherMini")
-            : base(obj)
-        {
-            if(folder == null)
-            {
-                throw new ArgumentNullException(nameof(folder));
-            }
-
-            Id = folder.Id.ToString();
-            Type = Enums.CipherType.Folder;
-            RevisionDate = folder.RevisionDate;
-            Data = new FolderDataModel(folder);
-        }
-
         public string Id { get; set; }
         public string OrganizationId { get; set; }
         public Enums.CipherType Type { get; set; }
@@ -63,11 +48,6 @@ namespace Bit.Core.Models.Api
             Edit = cipher.Edit;
         }
 
-        [Obsolete]
-        public CipherResponseModel(Folder folder, string obj = "cipher")
-            : base(folder, obj)
-        { }
-
         public string FolderId { get; set; }
         public bool Favorite { get; set; }
         public bool Edit { get; set; }

src/Core/Models/Api/Response/LoginResponseModel.cs

@@ -51,8 +51,5 @@ namespace Bit.Core.Models.Api
         public string Password { get; set; }
         public string Notes { get; set; }
         public DateTime RevisionDate { get; set; }
-
-        [Obsolete]
-        public FolderResponseModel Folder { get; set; }
     }
 }