[Retire] Rose::Form::Input (#2821)

* remove rose form input component folder

* remove component integration test

* remove _input styling and import ref

* remove import from addons

* remove app.scss form input styling

* replace form.input with Hds::Form::TextInput::Field

* remove assertions for disabled state, remove Hds replacement

* remove test that checks input field that no longer exists

* remove rose::form::input component from playgrouund.hbs

* remove @use 'input'

ui/admin/app/styles/app.scss

@@ -48,14 +48,6 @@
     width: 66%;
   }
 
-  .rose-form-input {
-    width: 100%;
-
-    .rose-form-input-field {
-      width: 100%;
-    }
-  }
-
   .rose-dropdown {
     $icon-width: sizing.rems(m) + sizing.rems(s);
     $indent: $icon-width + sizing.rems(xs);