Removed deprecated functions

lib/src/controller/quill_controller.dart

@@ -81,49 +81,6 @@ class QuillController extends ChangeNotifier {
     notifyListeners();
   }
 
-  // Those are the values that the user selects and not the one
-  // from the current line
-
-  /// The current font family, null to use the default one
-  @Deprecated('No longer used')
-  MapEntry<String, String>? _selectedFontFamily;
-
-  /// The current font family, null to use the default one
-  @Deprecated('No longer used')
-  MapEntry<String, String>? get selectedFontFamily => _selectedFontFamily;
-
-  @Deprecated('No longer used')
-  void selectFontFamily(MapEntry<String, String>? newFontFamily) {
-    _selectedFontFamily = newFontFamily;
-  }
-
-  /// The current font size, null to use the default one
-  @Deprecated('No longer used')
-  MapEntry<String, String>? _selectedFontSize;
-
-  /// The current font size, null to use the default one
-  @Deprecated('No longer used')
-  MapEntry<String, String>? get selectedFontSize => _selectedFontSize;
-
-  @Deprecated('No longer used')
-  void selectFontSize(MapEntry<String, String>? newFontSize) {
-    _selectedFontSize = newFontSize;
-  }
-
-  /// For the [QuillToolbarToggleStyleButton]
-  @Deprecated('No longer used')
-  final Map<Attribute, bool?> _selectedStyles = {};
-
-  /// For the [QuillToolbarToggleStyleButton]
-  @Deprecated('No longer used')
-  Map<Attribute, bool?> get selectedStyles => _selectedStyles;
-
-  /// For the [QuillToolbarToggleStyleButton]
-  @Deprecated('No longer used')
-  void selectStyle(Attribute attribute, bool value) {
-    _selectedStyles[attribute] = value;
-  }
-
   /// Tells whether to keep or reset the [toggledStyle]
   /// when user adds a new line.
   final bool keepStyleOnNewLine;