Remove src/dstr-assignment/default/for-await-of.template (invalid)

Will need to revisit with a function and generator version

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

src/dstr-assignment/default/for-await-of.template

-// Copyright (C) 2017 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-path: language/statements/for-await-of/dstr-
-name: for-await-of statement
-esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
-features: [destructuring-binding, async-iteration]
-flags: [async]
-info: |
-  IterationStatement :
-    for await ( LeftHandSideExpression of AssignmentExpression ) Statement
-
-  1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« »,
-     AssignmentExpression, iterate).
-  2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement,
-     keyResult, assignment, labelSet).
-
-  13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
-
-  [...]
-  5. If destructuring is true and if lhsKind is assignment, then
-     a. Assert: lhs is a LeftHandSideExpression.
-     b. Let assignmentPattern be the parse of the source text corresponding to
-        lhs using AssignmentPattern as the goal symbol.
-  [...]
----*/
-
-var counter = 0;
-
-async function fn() {
-  for await (/*{ elems }*/ of [/*{ vals }*/]) {
-    /*{ body }*/
-    counter += 1;
-  }
-}
-
-fn()
-  .then(() => assert.sameValue(counter, 1, 'iteration occurred as expected'), $DONE)
-  .then($DONE, $DONE);