remove broadcast-related code, except migrations

tests/app/template/test_rest.py

@@ -19,7 +19,6 @@ from app.dao.templates_dao import (
     dao_update_template,
 )
 from app.models import (
-    BROADCAST_TYPE,
     EMAIL_TYPE,
     LETTER_TYPE,
     SMS_TYPE,
@@ -38,7 +37,6 @@ from tests.conftest import set_config_values
 
 
 @pytest.mark.parametrize('template_type, subject', [
-    (BROADCAST_TYPE, None),
     (SMS_TYPE, None),
     (EMAIL_TYPE, 'subject'),
     (LETTER_TYPE, 'subject'),
@@ -218,7 +216,6 @@ def test_should_raise_error_if_service_does_not_exist_on_create(client, sample_u
 
 
 @pytest.mark.parametrize('permissions, template_type, subject, expected_error', [
-    ([EMAIL_TYPE, SMS_TYPE, LETTER_TYPE], BROADCAST_TYPE, None, {'template_type': ['Creating broadcast message templates is not allowed']}),  # noqa
     ([EMAIL_TYPE], SMS_TYPE, None, {'template_type': ['Creating text message templates is not allowed']}),
     ([SMS_TYPE], EMAIL_TYPE, 'subject', {'template_type': ['Creating email templates is not allowed']}),
     ([SMS_TYPE], LETTER_TYPE, 'subject', {'template_type': ['Creating letter templates is not allowed']}),
@@ -557,7 +554,6 @@ def test_should_get_return_all_fields_by_default(
     )
     assert json_response['data'][0].keys() == {
         'archived',
-        'broadcast_data',
         'content',
         'created_at',
         'created_by',
@@ -588,7 +584,6 @@ def test_should_get_return_all_fields_by_default(
     (EMAIL_TYPE, None),
     (SMS_TYPE, None),
     (LETTER_TYPE, None),
-    (BROADCAST_TYPE, 'This is a test'),
 ))
 def test_should_not_return_content_and_subject_if_requested(
     admin_request,
@@ -753,7 +748,7 @@ def test_should_return_404_if_no_templates_for_service_with_id(client, sample_se
 
 
 @pytest.mark.parametrize('template_type', (
-    SMS_TYPE, BROADCAST_TYPE,
+    SMS_TYPE,
 ))
 def test_create_400_for_over_limit_content(
     client,