remove unused textarea component

app/main/forms.py

@@ -815,49 +815,6 @@ class GovukCheckboxField(BooleanField):
         )
 
 
-class GovukTextareaField(TextAreaField):
-    def __init__(self, label="", validators=None, param_extensions=None, **kwargs):
-        super(TextAreaField, self).__init__(label, validators, **kwargs)
-        self.param_extensions = param_extensions
-
-    # self.__call__ renders the HTML for the field by:
-    # 1. delegating to self.meta.render_field which
-    # 2. calls field.widget
-    # this bypasses that by making self.widget a method with the same interface as widget.__call__
-    def widget(self, field, param_extensions=None, **kwargs):
-        # error messages
-        error_message = None
-        if field.errors:
-            error_message = {"text": field.errors[0]}
-
-        params = {
-            "name": field.name,
-            "id": field.id,
-            "rows": 8,
-            "label": {
-                "text": field.label.text,
-                "classes": None,
-                "isPageHeading": False,
-            },
-            "hint": {"text": None},
-            "errorMessage": error_message,
-        }
-
-        # extend default params with any sent in during instantiation
-        if self.param_extensions:
-            merge_jsonlike(params, self.param_extensions)
-
-        # add any sent in though use in templates
-        if param_extensions:
-            merge_jsonlike(params, param_extensions)
-
-        return Markup(
-            render_template(
-                "components/components/textarea/template.njk", params=params
-            )
-        )
-
-
 # based on work done by @richardjpope: https://github.com/richardjpope/recourse/blob/master/recourse/forms.py#L6
 class GovukCheckboxesField(SelectMultipleField):
     render_as_list = False