CA-111223: Compile xe executable as statically linked

xe package used to be installed on different distributions.
For this reason was builded statically.

This revert patch 4a9178b184c50d17edecfac8c342bcce4b786a33 introduced
trying to unify linker flags.

Signed-off-by: Frediano Ziglio <frediano.ziglio@citrix.com>