Remove RUBY_FIBER_MACHINE_STACK_SIZE workaround

Author: kateinoigakukun

packages/npm-packages/ruby-wasm-wasi/src/browser.ts

@@ -70,15 +70,7 @@ export const DefaultRubyVM = async (
 }> => {
   await init();
 
-  const wasi = new WASI({
-    env: {
-      // FIXME(katei): setjmp consumes a LOT of stack now, so we extend
-      // default Fiber stack size as well as main stack size allocated
-      // by wasm-ld's --stack-size. The ideal solution is to reduce
-      // stack consumption in setjmp.
-      RUBY_FIBER_MACHINE_STACK_SIZE: "16777216",
-    },
-  });
+  const wasi = new WASI({});
   const vm = new RubyVM();
 
   const imports = wasi.getImports(rubyModule) as WebAssembly.Imports;

packages/npm-packages/ruby-wasm-wasi/src/node.ts

@@ -2,15 +2,7 @@ import { WASI } from "wasi";
 import { RubyVM } from "./index";
 
 export const DefaultRubyVM = async (rubyModule: WebAssembly.Module) => {
-  const wasi = new WASI({
-    env: {
-      // FIXME(katei): setjmp consumes a LOT of stack now, so we extend
-      // default Fiber stack size as well as main stack size allocated
-      // by wasm-ld's --stack-size. The ideal solution is to reduce
-      // stack consumption in setjmp.
-      RUBY_FIBER_MACHINE_STACK_SIZE: "16777216",
-    },
-  });
+  const wasi = new WASI();
   const vm = new RubyVM();
   const imports = {
     wasi_snapshot_preview1: wasi.wasiImport,