staging: rtl8188eu: use phydm_regdefine11n.h from rtlwifi

Use rtlwifi/phydm/phydm_regdefine11n.h instead of odm_RegDefine11N.h
and remove the now unused odm_RegDefine11N.h.

The defines from odm_RegDefine11N.h are defined with the same values
in rtlwifi/phydm/phydm_regdefine11n.h.

There is one define that is named different, but that one is not
used in the rtl8188eu code.

rtl8188eu: #define ODM_REG_RX_PATH_11N 0xC04
rtlwifi: #defnie ODM_REG_BB_RX_PATH_11N 0xC04

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>