staging: rtl8188eu: Remove rtl8188e_ReadEFuse()

rtl8188e_ReadEFuse() checks bool bPseudoTest and then calls suitable
function to read Fuse, ReadEFuseByIC() also does same thing.
So use ReadEFuseByIC() and drop rtl8188e_ReadEFuse().

Signed-off-by: navin patidar <navin.patidar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>