removed unused code

lib/models/sessions.dart

@@ -1,9 +1,5 @@
 // @dart=2.9
 
-import 'dart:convert';
-
-import 'package:flutter/foundation.dart';
-
 class Sessions {
   final List<Session> sessions;
 
@@ -11,43 +7,11 @@ class Sessions {
     this.sessions,
   );
 
-  Sessions copyWith({
-    List<Session> sessions,
-  }) {
-    return Sessions(
-      sessions ?? this.sessions,
-    );
-  }
-
-  Map<String, dynamic> toMap() {
-    return {
-      'sessions': sessions?.map((x) => x.toMap())?.toList(),
-    };
-  }
-
   factory Sessions.fromMap(Map<String, dynamic> map) {
     return Sessions(
       List<Session>.from(map['sessions']?.map((x) => Session.fromMap(x))),
     );
   }
-
-  String toJson() => json.encode(toMap());
-
-  factory Sessions.fromJson(String source) =>
-      Sessions.fromMap(json.decode(source));
-
-  @override
-  String toString() => 'Sessions(sessions: $sessions)';
-
-  @override
-  bool operator ==(Object other) {
-    if (identical(this, other)) return true;
-
-    return other is Sessions && listEquals(other.sessions, sessions);
-  }
-
-  @override
-  int get hashCode => sessions.hashCode;
 }
 
 class Session {
@@ -67,35 +31,6 @@ class Session {
     this.lastUsedTime,
   );
 
-  Session copyWith({
-    String token,
-    int creationTime,
-    String ip,
-    String ua,
-    String prettyUA,
-    int lastUsedTime,
-  }) {
-    return Session(
-      token ?? this.token,
-      creationTime ?? this.creationTime,
-      ip ?? this.ip,
-      ua ?? this.ua,
-      prettyUA ?? this.prettyUA,
-      lastUsedTime ?? this.lastUsedTime,
-    );
-  }
-
-  Map<String, dynamic> toMap() {
-    return {
-      'token': token,
-      'creationTime': creationTime,
-      'ip': ip,
-      'ua': ua,
-      'prettyUA': prettyUA,
-      'lastUsedTime': lastUsedTime,
-    };
-  }
-
   factory Session.fromMap(Map<String, dynamic> map) {
     return Session(
       map['token'],
@@ -106,37 +41,4 @@ class Session {
       map['lastUsedTime'],
     );
   }
-
-  String toJson() => json.encode(toMap());
-
-  factory Session.fromJson(String source) =>
-      Session.fromMap(json.decode(source));
-
-  @override
-  String toString() {
-    return 'Session(token: $token, creationTime: $creationTime, ip: $ip, ua: $ua, prettyUA: $prettyUA, lastUsedTime: $lastUsedTime)';
-  }
-
-  @override
-  bool operator ==(Object other) {
-    if (identical(this, other)) return true;
-
-    return other is Session &&
-        other.token == token &&
-        other.creationTime == creationTime &&
-        other.ip == ip &&
-        other.ua == ua &&
-        other.prettyUA == prettyUA &&
-        other.lastUsedTime == lastUsedTime;
-  }
-
-  @override
-  int get hashCode {
-    return token.hashCode ^
-        creationTime.hashCode ^
-        ip.hashCode ^
-        ua.hashCode ^
-        prettyUA.hashCode ^
-        lastUsedTime.hashCode;
-  }
 }