qulogic/libgnt

Remove all of the #if 0'd blocks. All were 10 years old and don't seem necessary
plugindir = get_option('libdir') + '/gnt'
irssi = library('irssi', 'irssi.c',
dependencies : [ncurses, gobject, libgnt_dep],
name_prefix : '',
install : true, install_dir : plugindir)
if PURPLE_AVAILABLE
# These custom wms depend on libpurple
s = library('s', 's.c',
dependencies : [ncurses, gobject, libgnt_dep, libpurple_dep],
name_prefix : '',
install : true, install_dir : plugindir)
endif