Prune commentary and stale Rust port notes

core/src/orientation/align.rs

@@ -88,6 +88,10 @@ impl RegionAlign {
     pub const fn rel(&self) -> Vec2 {
         vec2(self.x.rel(), self.y.rel())
     }
+
+    pub const fn pos(self) -> UiVec2 {
+        UiVec2::from(self)
+    }
 }
 
 impl UiVec2 {
@@ -192,9 +196,3 @@ const impl From<RegionAlign> for UiVec2 {
         Self::rel(align.rel())
     }
 }
-
-impl RegionAlign {
-    pub const fn pos(self) -> UiVec2 {
-        UiVec2::from(self)
-    }
-}