Glotzbert: remove broadcom firmware

Hail cannot build this.

hosts/glotzbert/hardware-configuration.nix

@@ -10,7 +10,6 @@
 
   boot.initrd.availableKernelModules = [ "ohci_pci" "ehci_pci" "ahci" "firewire_ohci" "usb_storage" "usbhid" "sd_mod" "sr_mod" ];
   boot.kernelModules = [ "kvm-intel" "wl" "forcedeth" "b43" ];
-  boot.extraModulePackages = [ config.boot.kernelPackages.broadcom_sta ];
   boot.kernelParams = [ "irqpoll" "hpet=off" ];  # noapic seems to improve things
 
   fileSystems."/" =