staging: r8188eu: Remove even more empty routines

This patch removes the following:

odm_DynamicTxPowerAP
odm_RSSIMonitorCheckMP
odm_RSSIMonitorCheckAP
odm_TXPowerTrackingCheckMP
odm_TXPowerTrackingCheckAP
odm_SwAntDivInit
ODM_SwAntDivChkPerPktRssi
odm_SwAntDivChkAntSwitch
ODM_SwAntDivRestAfterLink
dm_GlobalAdapterCheck
odm_dtc

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>