Remove obsolete -I options from ECPG library compilation.

Noah Misch <noah@leadboat.com>

Commit: c8aa893862275614d54a0657d1fb336020c98f60
Author: Noah Misch <noah@leadboat.com>
Date: 2015-04-24T23:29:09Z
Releases: 9.5.0
Remove obsolete -I options from ECPG library compilation.

The MSVC build system already omitted these.

Files