[fvwmorg/fvwm] 43bf9b: configure: remove GNOME_INIT_HOOK

[Thomas Adam]

  Branch: refs/heads/ta/gnome-init-hooks
  Home:   https://github.com/fvwmorg/fvwm
  Commit: 43bf9bf82b4b3db521b11778afc68215c3d62173
      
https://github.com/fvwmorg/fvwm/commit/43bf9bf82b4b3db521b11778afc68215c3d62173
  Author: Thomas Adam <tho...@xteddy.org>
  Date:   2018-03-25 (Sun, 25 Mar 2018)

  Changed paths:
    M configure.ac

  Log Message:
  -----------
  configure: remove GNOME_INIT_HOOK

This is no longer used.