[evolution-ews] Delete unused po/LINGUAS file

[Milan Crha <mcrha src gnome org>]

commit dd6cc38eee30f31f39644406648da612656830d2
Author: Milan Crha <mcrha redhat com>
Date:   Mon Dec 19 15:41:35 2016 +0100

    Delete unused po/LINGUAS file
    
    This file is not needed since the switch to CMake, where the languages
    are detected by the .po file existence, but as I forgot to remove them
    in the time of the switch...

 po/LINGUAS |   38 --------------------------------------
 1 files changed, 0 insertions(+), 38 deletions(-)