omap: remove patch wlcore Add-support-for-DT-platform-data

- does not compile with 3.18
compile error: 'struct wl12xx_platform_data' has no member named 'gpio'

- different version was sent 2015 but cannot be tested by me
see "[PATCH v7 0/6] wlcore: add device-tree support" series
in linux-omap

Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de>

SVN-Revision: 45235