Remove leftover macro (#4326)

Author: daxpedda

crates/backend/src/codegen.rs

@@ -229,7 +229,6 @@ impl ToTokens for ast::Struct {
             #[automatically_derived]
             impl #wasm_bindgen::describe::WasmDescribe for #name {
                 fn describe() {
-                    use #wasm_bindgen::__wbindgen_if_not_std;
                     use #wasm_bindgen::describe::*;
                     inform(RUST_STRUCT);
                     inform(#name_len);

src/lib.rs

@@ -1633,20 +1633,6 @@ pub mod __rt {
         }
     }
 
-    #[macro_export]
-    #[doc(hidden)]
-    #[cfg(feature = "std")]
-    macro_rules! __wbindgen_if_not_std {
-        ($($i:item)*) => {};
-    }
-
-    #[macro_export]
-    #[doc(hidden)]
-    #[cfg(not(feature = "std"))]
-    macro_rules! __wbindgen_if_not_std {
-        ($($i:item)*) => ($($i)*)
-    }
-
     #[inline]
     pub fn assert_not_null<T>(s: *mut T) {
         if s.is_null() {