[DD-539] Clean: tear down snippetFeedback experiment. (circleci#6690)

* rebase

* Fix: lint.

* Fix: lint.

Co-authored-by: Tony <[email protected]>

Author: teesloane

src/js/experiments/index.js

@@ -1,6 +1,5 @@
 import forceAll from './forceAll';
 import languageGuides from './languageGuides';
-import './snippetFeedback';
 import troubleShootingCommonIssues from './troubleshootingCommonIssues';
 import popupCta from './popupCta';