CVS tadam: Revert "Update passive grabs tracking modifiers"

[cvs]

CVSROOT:        /home/cvs/fvwm
Module name:    fvwm
Changes by:     tadam   14/09/11 16:19:32

Modified files:
        .              : Tag: branch-2_6 ChangeLog 
        docs           : Tag: branch-2_6 COMMANDS 
        fvwm           : Tag: branch-2_6 bindings.c bindings.h events.c 
                         functable.c 

Log message:
Revert "Update passive grabs tracking modifiers"

Need a slightly better approach; removed for now.