Global wasmtime_component_func_post_return (const wasmtime_component_func_t *func, wasmtime_context_t *context): Previously, this invoked the post-return canonical ABI option, if specified, after a wasmtime_component_func_call had finished. Now that's taken care of automatically as part of wasmtime_component_func_call, so this function is no longer needed, and any calls to it may be removed.