$world->silentdisalias$world->silentdisalias function: SILENTly DISables an ALIAS
| void $world->silentdisalias( | name/number, | 
| ...); | 
Disables the alias identified by number or name. If there are several aliases with the same name, disables them all. Several arguments can be passed at once. Does not print a message in the screen in case of success.