libgnt/libgnt

Remove volatile from GntBindable registration.

2021-05-26, Elliott Sales de Andrade
81827d41b859
Remove volatile from GntBindable registration.

This causes a warning with GLib 2.67 and GCC 11.

Testing Done:
Compiled and saw no warnings.

Reviewed at https://reviews.imfreedom.org/r/674/
foreach prog : ['combo', 'focus', 'tv', 'multiwin', 'keys', 'menu', 'parse']
executable(prog,
prog + '.c',
c_args : '-DSTANDALONE',
dependencies : [libgnt_dep, gobject, gmodule])
endforeach
shared_library('wm',
'wm.c',
name_prefix : '',
dependencies : [libgnt_dep, gobject, gmodule])