feat(toolbar): remove legacy v1 spoiler

Author: realth000

lib/src/editor.dart

@@ -17,7 +17,6 @@ import 'package:flutter_bbcode_editor/src/tags/hide/hide_buttton.dart';
 import 'package:flutter_bbcode_editor/src/tags/image/image_builder.dart';
 import 'package:flutter_bbcode_editor/src/tags/image/image_button.dart';
 import 'package:flutter_bbcode_editor/src/tags/spoiler/spoiler_builder.dart';
-import 'package:flutter_bbcode_editor/src/tags/spoiler/spoiler_button.dart';
 import 'package:flutter_bbcode_editor/src/tags/spoiler_v2/spoiler_v2_builder.dart';
 import 'package:flutter_bbcode_editor/src/tags/spoiler_v2/spoiler_v2_button.dart';
 import 'package:flutter_bbcode_editor/src/tags/user_mention/user_mention_builder.dart';

lib/src/editor_tool_bar.dart

@@ -451,8 +451,9 @@ class _BBCodeEditorToolbarState extends State<BBCodeEditorToolbar> {
                 if (widget.showUserMentionButton)
                   BBCodeEditorToolbarUserMentionButton(controller: controller, usernamePicker: widget._usernamePicker),
 
-                // Spoiler.
-                if (widget.showSpoilerButton) BBCodeEditorToolbarSpoilerButton(controller: controller),
+                // Disable legacy v1 spoiler.
+                // // Spoiler.
+                // if (widget.showSpoilerButton) BBCodeEditorToolbarSpoilerButton(controller: controller),
 
                 // Spoiler v2.
                 if (widget.showSpoilerButton)