ANDROID: cuttlefish_defconfig: remove 80211_HWSIM

Fix to re-enable wifi on cf + kernel 4.14. Remove mac80211_hwsim
virtual device on cuttlefish kernels as we want to use virt_wifi
now instead.

Test: Local boot with cuttlefish
Bug: 145836345
Change-Id: Ifac04724afef7f5ad5aff46bae9c1ea0e77f892c
Signed-off-by: Ram Muthiah <rammuthiah@google.com>