Revert "Quick fix for deprecated async syntax"

This reverts commit afc1e24571.

idea/testData/inspections/cleanup/cleanup.kt

@@ -74,23 +74,3 @@ val x = C() willBeInfix 1
 fun infixTest() {
     arrayListOf(1, 2, 3) map { it }
 }
-
-fun async(f: () -> Unit) {}
-infix fun Any.async(f: () -> Unit) {}
-
-fun test(foo: Any) {
-    async {  }
-    async /**/ {  }
-    foo async {  }
-
-    async() { }
-
-    async({ })
-    foo async ({ })
-
-    foo async fun () {}
-    foo async (fun () {})
-
-    async (fun () {})
-}
-

idea/testData/inspections/cleanup/cleanup.kt.after

@@ -73,23 +73,3 @@ val x = C() willBeInfix 1
 fun infixTest() {
     arrayListOf(1, 2, 3).map { it }
 }
-
-fun async(f: () -> Unit) {}
-infix fun Any.async(f: () -> Unit) {}
-
-fun test(foo: Any) {
-    async() {  }
-    async() /**/ {  }
-    foo async ({  })
-
-    async() { }
-
-    async({ })
-    foo async ({ })
-
-    foo async (fun () {})
-    foo async (fun () {})
-
-    async (fun () {})
-}
-

idea/testData/quickfix/asyncUnsupported/asyncInfixCall.kt

@@ -1,6 +0,0 @@
-// "Migrate unsupported async syntax" "true"
-infix fun Any.async(f: () -> Unit) = f()
-
-fun test(foo: Any) {
-    foo <caret>async { }
-}

idea/testData/quickfix/asyncUnsupported/asyncInfixCall.kt.after

@@ -1,6 +0,0 @@
-// "Migrate unsupported async syntax" "true"
-infix fun Any.async(f: () -> Unit) = f()
-
-fun test(foo: Any) {
-    foo <caret>async ({ })
-}

idea/testData/quickfix/asyncUnsupported/asyncInfixCallWithFun.kt

@@ -1,6 +0,0 @@
-// "Migrate unsupported async syntax" "true"
-infix fun Any.async(f: () -> Unit) = f()
-
-fun test(foo: Any) {
-    foo async<caret> fun () {}
-}

idea/testData/quickfix/asyncUnsupported/asyncInfixCallWithFun.kt.after

@@ -1,6 +0,0 @@
-// "Migrate unsupported async syntax" "true"
-infix fun Any.async(f: () -> Unit) = f()
-
-fun test(foo: Any) {
-    foo async<caret> (fun () {})
-}

idea/testData/quickfix/asyncUnsupported/asyncWithLambda.kt

@@ -1,6 +0,0 @@
-// "Migrate unsupported async syntax" "true"
-fun async(f: () -> Unit) {}
-
-fun test() {
-    asy<caret>nc {  }
-}

idea/testData/quickfix/asyncUnsupported/asyncWithLambda.kt.after

@@ -1,6 +0,0 @@
-// "Migrate unsupported async syntax" "true"
-fun async(f: () -> Unit) {}
-
-fun test() {
-    asy<caret>nc() {  }
-}

idea/testData/quickfix/asyncUnsupported/asyncWithLambdaAndComment.kt

@@ -1,6 +0,0 @@
-// "Migrate unsupported async syntax" "true"
-fun async(f: () -> Unit) {}
-
-fun test() {
-    async<caret> /**/ {  }
-}

idea/testData/quickfix/asyncUnsupported/asyncWithLambdaAndComment.kt.after

@@ -1,6 +0,0 @@
-// "Migrate unsupported async syntax" "true"
-fun async(f: () -> Unit) {}
-
-fun test() {
-    async<caret>() /**/ {  }
-}