remove out-of-date comments

Author: ef4

Diff for: __tests__/tests.ts

@@ -1705,8 +1705,6 @@ describe('htmlbars-inline-precompile', function () {
     // that's what the lint rules are for. When it comes to correctness, we need
     // our scope to behave like real Javascript, and Javascript doesn't care
     // whether you've (for example) capitalized your variable identifier.
-    //
-    // needs https://github.com/glimmerjs/glimmer-vm/pull/1421
     it('shadows html elements with locals', function () {
       plugins = [
         [
@@ -1761,7 +1759,6 @@ describe('htmlbars-inline-precompile', function () {
       `);
     });
 
-    // needs https://github.com/glimmerjs/glimmer-vm/pull/1421
     it('leaves ember keywords alone when no local is defined', function () {
       plugins = [
         [