Migration to remove remaining_minutes

This column has not been used since we introduced remaining_seconds and the Django model property remaining_minutes
Fix MPP-3448

phones/migrations/0028_remove_relaynumber_deprecated_remaining_minutes.py

@@ -0,0 +1,16 @@
+# Generated by Django 3.2.20 on 2023-09-21 22:49
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("phones", "0027_relaynumber_vendor"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="relaynumber",
+            name="deprecated_remaining_minutes",
+        ),
+    ]