orchestrator docs: drop inaccurate 'three orthogonal axes' claim

docs/src/design/orchestrator/orchestrator-model.md

diff --git a/docs/src/design/orchestrator/orchestrator-model.md b/docs/src/design/orchestrator/orchestrator-model.md
index cb1319c..7c19f95 100644
--- a/docs/src/design/orchestrator/orchestrator-model.md
+++ b/docs/src/design/orchestrator/orchestrator-model.md
@@ -81,7 +81,7 @@
 
 ### `ComponentAttrs`
 
-Per-component attributes that combine three orthogonal axes:
+Per-component attributes:
 
 ```rust
 pub struct ComponentAttrs {