* Revert "Initial integration of libtxt with Flutter alongside Blink. (#3771)"
This reverts commit c548c65b5020653087b63f1f156741a1f95b5117.
* Revert "Call Selection.removeSelection if the framework has cleared the selection (#3782)"
This reverts commit e5b79ba63b92aa0c4299836f4433ec0de23b7cb3.
* Revert "Update switches to use StringView. (#3781)"
This reverts commit 07d4357b1ac4c7aa8c13f1627071e43096ef3cc5.