Disable the code_layout optimization

When compiling libcore, it causes ebb params to be dropped for a certain function

src/optimize/code_layout.rs

@@ -11,6 +11,8 @@
 use crate::prelude::*;
 
 pub(super) fn optimize_function(ctx: &mut Context, cold_ebbs: &EntitySet<Ebb>) {
+    return; // FIXME add ebb arguments back
+
     // FIXME Move the ebb in place instead of remove and append once
     // bytecodealliance/cranelift#1339 is implemented.