Disable layout docs for type aliases for now

There are issues with computing layout for type aliases; see #85103.
Once the issues are fixed, we should re-enable layout docs for them.

Author: camelid

src/librustdoc/html/render/print_item.rs

@@ -837,8 +837,6 @@ fn item_typedef(w: &mut Buffer, cx: &Context<'_>, it: &clean::Item, t: &clean::T
     // associated items from the aliased type (see discussion in #32077), but
     // we need #14072 to make sense of the generics.
     render_assoc_items(w, cx, it, def_id, AssocItemRender::All);
-
-    document_type_layout(w, cx, def_id);
 }
 
 fn item_union(w: &mut Buffer, cx: &Context<'_>, it: &clean::Item, s: &clean::Union) {

src/test/rustdoc/type-layout.rs

@@ -50,9 +50,5 @@ pub struct GenericLifetimes<'a>(&'a str);
 // @has - '(unsized)'
 pub struct Unsized([u8]);
 
-// @has type_layout/type.TypeAlias.html 'Size: '
-// @has - ' bytes'
-pub type TypeAlias = X;
-
 // @!has type_layout/trait.MyTrait.html 'Size: '
 pub trait MyTrait {}