Remove personal copyright notice

1. https://github.com/apache/cordova-lib/blob/f8b58c782c71558516adbbd81929ee31ec3ded7f/cordova-lib/src/plugman/util/search-and-replace.js#L4
2. https://github.com/apache/cordova-lib/blob/f8b58c782c71558516adbbd81929ee31ec3ded7f/cordova-common/src/util/plist-helpers.js#L3
3. https://github.com/apache/cordova-lib/blob/f8b58c782c71558516adbbd81929ee31ec3ded7f/cordova-lib/src/plugman/util/plist-helpers.js#L3

Brett Rudd is an Apache Cordova committer and thus has signed the iCLA.

Also, there are multiple occurrences of copyright from "Anis Kadri" (Copyright 2013 Anis Kadri) that need to be removed as well.