layout: Unify layout logic for replaced and non-replaced floats&atomics (#37897)

Laying out a float or atomic inline will now use the same logic
regardless of whether it's replaced or not.
This reduces the amount of code, and should have no observable effect.

Testing: Unneeded (no behavior change)
This part of #37942

Signed-off-by: Oriol Brufau <obrufau@igalia.com>

components/layout/geom.rs

@@ -85,13 +85,6 @@ impl<T: Copy> From<T> for LogicalVec2<T> {
 }
 
 impl<T> LogicalVec2<T> {
-    pub(crate) fn as_ref(&self) -> LogicalVec2<&T> {
-        LogicalVec2 {
-            inline: &self.inline,
-            block: &self.block,
-        }
-    }
-
     pub fn map_inline_and_block_axes<U>(
         &self,
         inline_f: impl FnOnce(&T) -> U,