Delete CPS IR

tests/compiler/dart2js/cps_ir/expected/redundant_condition.js

-// Expectation for test: 
-// // This test illustrates an opportunity to remove redundant code by
-// // propagating inforamtion after inlining.
-// //
-// // The code below inlines `foo` twice, but we don't propagate that we already
-// // know from the first `foo` that `a` is an int, so the second check can be
-// // removed entirely.
-// 
-// import 'package:expect/expect.dart';
-// 
-// main() {
-//   var a = nextNumber();
-//   action(foo(a));
-//   action(foo(a));
-// }
-// 
-// foo(x) {
-//   if (x is! int) throw "error 1";
-//   return x + 5 % 100;
-// }
-// 
-// @NoInline() @AssumeDynamic()
-// nextNumber() => int.parse('33');
-// 
-// @NoInline()
-// action(v) => print(v);
-
-function() {
-  var a = V.nextNumber();
-  if (typeof a !== "number" || Math.floor(a) !== a)
-    throw H.wrapException("error 1");
-  a += 5;
-  V.action(a);
-  V.action(a);
-}