remove reference to asdf from bread fixtures (#562)

bakerydemo/base/fixtures/bakerydemo.json

@@ -532,14 +532,6 @@
       "name": "Salt"
     }
   },
-  {
-    "model": "breads.breadtype",
-    "pk": 1,
-    "fields": {
-      "latest_revision": 89,
-      "title": "asdf"
-    }
-  },
   {
     "model": "breads.breadtype",
     "pk": 2,
@@ -9220,24 +9212,6 @@
       "approved_go_live_at": null
     }
   },
-  {
-    "model": "wagtailcore.revision",
-    "pk": 89,
-    "fields": {
-      "content_type": ["breads", "breadtype"],
-      "base_content_type": ["breads", "breadtype"],
-      "object_id": "1",
-      "created_at": "2023-09-01T16:55:33.678Z",
-      "user": ["admin"],
-      "object_str": "asdf",
-      "content": {
-        "pk": 1,
-        "latest_revision": null,
-        "title": "asdf"
-      },
-      "approved_go_live_at": null
-    }
-  },
   {
     "model": "wagtailcore.revision",
     "pk": 90,
@@ -11632,23 +11606,6 @@
       "object_id": "5"
     }
   },
-  {
-    "model": "wagtailcore.modellogentry",
-    "pk": 31,
-    "fields": {
-      "content_type": ["breads", "breadtype"],
-      "label": "asdf",
-      "action": "wagtail.create",
-      "data": {},
-      "timestamp": "2023-09-01T16:55:33.681Z",
-      "uuid": null,
-      "user": ["admin"],
-      "revision": 89,
-      "content_changed": true,
-      "deleted": false,
-      "object_id": "1"
-    }
-  },
   {
     "model": "wagtailcore.modellogentry",
     "pk": 32,