models, commands: remove unused code (#202)

- remove Repo.is_initialized (bug 1915203)
- remove Worker.ssh_private_key (bug 1936864)
- remove unused landing_worker management command (bug 1927139)

src/lando/main/migrations/0015_remove_repo_is_initialized_and_more.py

@@ -0,0 +1,21 @@
+# Generated by Django 5.1.4 on 2025-01-27 14:58
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("main", "0014_rename_error_breakdown_diffwarning_data"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="repo",
+            name="is_initialized",
+        ),
+        migrations.RemoveField(
+            model_name="worker",
+            name="ssh_private_key",
+        ),
+    ]

src/lando/main/models/repo.py

@@ -64,8 +64,6 @@ def path(self) -> str:
         blank=True,
         default=None,
     )
-    is_initialized = models.BooleanField(default=False)
-
     system_path = models.CharField(
         max_length=255,
         blank=True,

src/lando/main/models/worker.py

@@ -15,7 +15,6 @@ class Worker(BaseModel):
     name = models.CharField(max_length=255, unique=True)
     is_paused = models.BooleanField(default=False)
     is_stopped = models.BooleanField(default=False)
-    ssh_private_key = models.TextField(null=True, blank=True)
     applicable_repos = models.ManyToManyField(Repo)
 
     throttle_seconds = models.IntegerField(default=10)