Removing unused webtoolkit.md5.js file

Hello everyone.

We found out that webtoolkit.md5.js file is in the 1.5 branch but doesn't seem to be used anywhere.

This wouldn't be a major issue, but please consider that everybody who is interested in FIPS (Federal Information Processing Standards) needs to get an exemption for every use of MD5.
The Drupal Core had agreed and already completed the work by removing all instances of MD5 from the code base - https://drupal.org/node/723802.

I noticed the file has been already removed from the 2.x branch. Could we consider to remove it from the 1.5 as well?

Many thanks