diff --git a/src/effects.js b/src/effects.js
index e83eb31..16212d6 100644
--- a/src/effects.js
+++ b/src/effects.js
@@ -128,8 +128,7 @@ export const render_initial_state = (ui, state) => {
   ui.editor.switch_session(state.current_module)
 }
 
-// TODO remove async
-export const render_common_side_effects = async (prev, next, command, ui) => {
+export const render_common_side_effects = (prev, next, command, ui) => {
   if(
     prev.project_dir != next.project_dir 
     || 
diff --git a/x.js b/x.js
deleted file mode 100644
index 7a2fe71..0000000
--- a/x.js
+++ /dev/null
@@ -1,43 +0,0 @@
-const delay = () => new Promise(resolve => {
-  setTimeout(resolve, 1000)
-})
-
-await [1,2,3,4,5].reduce(
-  async (acc, x) => {
-    console.log('wait')
-    await acc
-    await delay()
-    console.log('wait finish')
-  },
-  Promise.resolve(),
-)
-
-
-/*
-await delay
-console.log('x')
-export const x = 1
-*/
-
-/*
-const p = {then: y => y(3)}
-
-async function test() {
-  return await p
-}
-*/
-
-  // TODO remove
-  //const x = new Promise((resolve, reject) => resolve(10))
-  //const x = Promise.reject(10)
-  //const x = Promise.resolve(10)
-  //console.log('x', x.status)
-  //x.catch(e => {
-  //  console.log('x', x.status)
-  //})
-  //const x = new Promise((resolve, reject) => setTimeout(() => resolve(10), 1000))
-  //console.log('x', x.status)
-  //x.then(() => {
-  //  console.log('x', x.status)
-  //})
-//console.log(await test())