silc_schedule_task_del_by_context
SYNOPSIS
SilcBool silc_schedule_task_del_by_context(SilcSchedule schedule, void *context);
DESCRIPTION
Deletes a task from the scheduler by the specified `context'. Returns FALSE if such task with such context does not exist.
It is safe to call this function in any place. Tasks may be removed in task callbacks (including in the task's own task callback) and in multi-threaded environment in other threads as well.
If `schedule' is NULL this will call silc_schedule_get_global to try to get global scheduler.