feat: delete cc_pref stream preferences rows

- Delete the previously deprecated cc_pref stream preferences rows.

api/libretime_api/legacy/migrations/0042_remove_stream_preferences.py

@@ -0,0 +1,46 @@
+# pylint: disable=invalid-name
+
+from django.db import migrations
+
+from ._migrations import legacy_migration_factory
+
+UP = """
+delete from cc_pref
+where "keystr" in (
+    'default_icecast_password',
+    'default_stream_mount_point',
+    'live_dj_connection_url_override',
+    'live_dj_source_connection_url',
+    'master_dj_connection_url_override',
+    'master_dj_source_connection_url',
+    'max_bitrate',
+    'num_of_streams',
+    'stream_bitrate',
+    'stream_type'
+);
+"""
+
+DOWN = """
+insert into
+    cc_pref ("keystr", "valstr")
+values
+    ('default_stream_mount_point', 'main'),
+    ('max_bitrate', '320'),
+    ('num_of_streams', '3'),
+    ('stream_bitrate', '24, 32, 48, 64, 96, 128, 160, 192, 224, 256, 320'),
+    ('stream_type', 'ogg, mp3, opus, aac');
+"""
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("legacy", "0041_drop_stream_setting_table"),
+    ]
+    operations = [
+        migrations.RunPython(
+            code=legacy_migration_factory(
+                target="42",
+                sql=UP,
+            )
+        )
+    ]

api/libretime_api/legacy/migrations/__init__.py

@@ -1,2 +1,2 @@
 # The schema version is defined using the migration file prefix number
-LEGACY_SCHEMA_VERSION = "41"
+LEGACY_SCHEMA_VERSION = "42"