Web Inspector: [Settings] Fix JS compiler warnings.
https://bugs.webkit.org/show_bug.cgi?id=112879

Reviewed by Pavel Feldman.

Removed erroneous JSDoc.

* inspector/front-end/Settings.js: Removed erroneous JSDoc.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146442 268f45cc-cd09-0410-ab3c-d52691b4dbfc