diff --git a/office_level_columns.diff b/office_level_columns.diff
deleted file mode 100644
index 6747cff..0000000
--- a/office_level_columns.diff
+++ /dev/null
@@ -1,16 +0,0 @@
-Source   : /tmp/ifccommit_qy1lj7dw/repo/ifc/office_level_0.ifc
-Target   : /tmp/ifccommit_qy1lj7dw/repo/ifc/office_level_columns.ifc
-
-Summary:
-  Added   : 3 element(s)
-  Removed : 0 element(s)
-  Modified: 546 element(s)
-
-Added elements:
-  +32074 IfcColumn Stütze-001
-  +32126 IfcColumn Stütze-001
-  +32178 IfcColumn Stütze-001
-
-Removed elements:
-
-Modified elements: