Delete unused functions and their tests

tests/app/main/views/test_dashboard.py

@@ -14,7 +14,6 @@ from app.main.views.dashboard import (
     aggregate_status_types,
     aggregate_template_usage,
     format_monthly_stats_to_list,
-    format_template_stats_to_list,
     get_dashboard_totals,
     get_free_paid_breakdown_for_billable_units,
     get_tuples_of_financial_years,
@@ -1269,48 +1268,6 @@ def test_get_free_paid_breakdown_for_billable_units(now, expected_number_of_mont
         ][:expected_number_of_months]
 
 
-def test_format_template_stats_to_list_with_no_stats():
-    assert list(format_template_stats_to_list({})) == []
-
-
-def test_format_template_stats_to_list():
-    counts = {
-        'created': 1,
-        'pending': 1,
-        'delivered': 1,
-        'failed': 1,
-        'temporary-failure': 1,
-        'permanent-failure': 1,
-        'technical-failure': 1,
-        'do-not-count': 999,
-    }
-    stats_list = list(format_template_stats_to_list({
-        'template_2_id': {
-            'counts': {},
-            'name': 'bar',
-        },
-        'template_1_id': {
-            'counts': counts,
-            'name': 'foo',
-        },
-    }))
-
-    # we don’t care about the order of this function’s output
-    assert len(stats_list) == 2
-    assert {
-        'counts': counts,
-        'name': 'foo',
-        'requested_count': 7,
-        'id': 'template_1_id',
-    } in stats_list
-    assert {
-        'counts': {},
-        'name': 'bar',
-        'requested_count': 0,
-        'id': 'template_2_id',
-    } in stats_list
-
-
 def test_get_tuples_of_financial_years():
     assert list(get_tuples_of_financial_years(
         lambda year: 'http://example.com?year={}'.format(year),

tests/app/main/views/test_templates.py

@@ -8,10 +8,7 @@ from flask import url_for
 from freezegun import freeze_time
 from notifications_python_client.errors import HTTPError
 
-from app.main.views.templates import (
-    get_human_readable_delta,
-    get_last_use_message,
-)
+from app.main.views.templates import get_human_readable_delta
 from tests import (
     single_notification_json,
     template_json,
@@ -1920,23 +1917,6 @@ def test_route_invalid_permissions(
         service_one)
 
 
-def test_get_last_use_message_returns_no_template_message():
-    assert get_last_use_message('My Template', []) == 'My Template has never been used'
-
-
-@freeze_time('2000-01-01T15:00')
-def test_get_last_use_message_uses_most_recent_statistics():
-    template_statistics = [
-        {
-            'updated_at': '2000-01-01T12:00:00.000000+00:00'
-        },
-        {
-            'updated_at': '2000-01-01T09:00:00.000000+00:00'
-        },
-    ]
-    assert get_last_use_message('My Template', template_statistics) == 'My Template was last used 3 hours ago'
-
-
 @pytest.mark.parametrize('from_time, until_time, message', [
     (datetime(2000, 1, 1, 12, 0), datetime(2000, 1, 1, 12, 0, 59), 'under a minute'),
     (datetime(2000, 1, 1, 12, 0), datetime(2000, 1, 1, 12, 1), '1 minute'),