This reverts commit e26e856459.
From release 24.10 we always use wifi-scripts and netifd doesn't ship
netifd-wireless.sh anymore.
When wifi-scripts is selected, the netifd install fails as it can't find
the local script to remove.
To fix it, drop the workaround entirely.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>