Remove JSPAC-oriented PasswordReset.pm interface

A native TPAC interface for resetting passwords arrived some time ago,
and the i18n for PasswordReset.pm predated the more standardized
approach taken by TPAC. So... kill the JSPAC interface and save
ourselves a little bit of Apache overhead in the process.

Signed-off-by: Dan Scott <dscott@laurentian.ca>
Signed-off-by: Bill Erickson <berick@esilibrary.com>