Remove 3.4 kernel ifdefs for STATION_INFO_ASSOC_REQ_IES

This flag is not #ifdefed for 3.4 on any other driver
I've seen, including ICS bcmdhd for Samsung devices.

Removing this ifdef (and thus enabling the flag) appears
to fix WPA/WPA2 tethering on mint.

Change-Id: Ie62f81ed8a5a82114cf007b7016f92ab76f0959f