[PATCH] hostap: Remove iwe_stream_add_event kludge

Now that we are compiling with -fno-strict-aliasing (this is the
kernel default), we can drop the following kludge for
iwe_stream_add_event().

Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>