test: remove unneeded tests

AsyncWrap will be going through many changes, and the old API will no longer be used. So remove those tests that will no longer be useful. They may be added back later using the new API, once fully implemented.
nodejs · AndreasMadsen · Apr 11, 2017 · Mar 3, 2017 · Dec 13, 2016 · Sep 28, 2016
commit 267ff9e81ab656574baa66328d3363682f9dc4a3
diff --git a/test/parallel/test-async-wrap-check-providers.js b/test/parallel/test-async-wrap-check-providers.js
diff --git a/test/parallel/test-async-wrap-disabled-propagate-parent.js b/test/parallel/test-async-wrap-disabled-propagate-parent.js
diff --git a/test/parallel/test-async-wrap-post-did-throw.js b/test/parallel/test-async-wrap-post-did-throw.js
diff --git a/test/parallel/test-async-wrap-propagate-parent.js b/test/parallel/test-async-wrap-propagate-parent.js
diff --git a/test/parallel/test-async-wrap-throw-no-init.js b/test/parallel/test-async-wrap-throw-no-init.js
diff --git a/test/parallel/test-async-wrap-uid.js b/test/parallel/test-async-wrap-uid.js