[packages] mac80211: remove header files used to share struct with platform code.

[packages] mac80211: remove header files used to share struct with platform code.

The structs defined in these header files should be the same as the
structes used by the platform code otherwise it will cause strange
runtime errors. By removing them from compat-wireless we will get a
compile error instead of a runtime error if they are out of sync.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33006 3c298f89-4303-0410-b956-a3cf2f4a3e73