staging: r8188eu: remove HW_VAR_H2C_FW_JOINBSSRPT from SetHwReg8188EU()

staging: r8188eu: remove HW_VAR_H2C_FW_JOINBSSRPT from SetHwReg8188EU()

The HW_VAR_H2C_FW_JOINBSSRPT case in SetHwReg8188EU() just calls a
function. Call the function directly and remove the
HW_VAR_H2C_FW_JOINBSSRPT case from SetHwReg8188EU(). This is part of
the ongoing effort to get rid of the unwanted hal layer.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220402092332.6627-7-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>