Merge branch 'fraccaman/replace-wee-alloc' into draft+3331

* fraccaman/replace-wee-alloc:
  wasm_for_tests: delete old unused `wasm_source/Cargo.toml`
  changelog: add #3331
  switch wee_alloc for rlsf

.changelog/unreleased/improvements/3331-replace-wee-alloc.md

@@ -0,0 +1,2 @@
+- Switched from wee allocator to rlsf for WASM.
+  ([\#3331](https://github.com/anoma/namada/pull/3331))

crates/macros/src/lib.rs

@@ -28,9 +28,9 @@ pub fn transaction(_attr: TokenStream, input: TokenStream) -> TokenStream {
     let ast = parse_macro_input!(input as ItemFn);
     let ident = &ast.sig.ident;
     let gen = quote! {
-        // Use `wee_alloc` as the global allocator.
+        // Use `rlsf` as the global allocator.
         #[global_allocator]
-        static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
+        static ALLOC: rlsf::SmallGlobalTlsf = rlsf::SmallGlobalTlsf::new();
 
         #ast
 
@@ -88,9 +88,9 @@ pub fn validity_predicate(
     let ast = parse_macro_input!(input as ItemFn);
     let ident = &ast.sig.ident;
     let gen = quote! {
-        // Use `wee_alloc` as the global allocator.
+        // Use `rlsf` as the global allocator.
         #[global_allocator]
-        static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
+        static ALLOC: rlsf::SmallGlobalTlsf = rlsf::SmallGlobalTlsf::new();
 
         #ast