Don't use chef_handler cookbook for Chef >= 14

[amenasria]

What does this PR do?

This PR removes usage of chef_handler cookbook for Chef >= 14.

Motivation

This was reported in issue #872 .

As it's stated on https://supermarket.chef.io/cookbooks/chef_handler:

The chef_handler resource from this cookbook is now shipping as part of Chef 14.
With the inclusion of this resource into Chef itself we are now deprecating this cookbook.
It will continue to function for Chef 13 users, but will not be updated.

So we don't need to use it anymore as it's part of Chef from version 14.

Additional Notes

Possible Drawbacks / Trade-offs

Describe how to test/QA your changes

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