staging: r8188eu: remove Hal_MPT_CCKTxPowerAdjustbyIndex()

IC Type is always 8188E. Therefore, the test
"if (!IS_92C_SERIAL(pHalData->VersionID))" in
Hal_MPT_CCKTxPowerAdjustbyIndex() is always true and the function
does nothing, remove it.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830092153.9283-2-straube.linux@gmail.com


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