pidgin/pidgin

jabber: Fix some review comments.

2019-11-03, Elliott Sales de Andrade
3acd6bb854c4
jabber: Fix some review comments.

* Remove a static buffer.
* Remove a redundant condition check.
pidgin3_xml = configure_file(
input : 'pidgin3.xml.in',
output : 'pidgin3.xml',
configuration : version_conf,
install : true,
install_dir : join_paths(get_option('datadir'), 'glade', 'catalogs'))