i found another option
instead of trying to disable or hiding extended minimap
i just disabled the map to use the extended minimap"
add map you want to disable under your client
data/exceptionminimapnametable.txt
sample:
izlude_d#
and if you want to change the disable dialog then go
data/msgstringtable.txt
In this map You can't memorize and zoom the minimap.# <-change this line to whatever you like
sample:
Extended minimap feature is not available.#