staging: wfx: remove useless comments after #endif

Comments after the last #endif of header files don't bring any
information and are redundant with the name of the file. Drop them.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20210913130203.1903622-30-Jerome.Pouiller@silabs.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>