diff --git a/project_grouper.py b/project_grouper.py
index 05cf11e..aa27c1e 100644
--- a/project_grouper.py
+++ b/project_grouper.py
@@ -110,15 +110,6 @@ rules = [
             'VisualEditor-VisualDiffs',
         ],
     },
-    {
-        # T280119
-        'add': 'sre-observability',
-        'in': [
-            'wikimedia-logstash',
-            'icinga',
-            'graphite',
-        ],
-    },
     {
         'add': 'user-urbanecm-wmf-engineering',
         'in': [