staging: xgifb: delete duplicated TV data tables

Delete redundant TV data tables. Replace as follows:

	XGI_EPLCHTVDataPtr	==> xgifb_chrontel_tv
	XGI_EPLCHTVRegPtr	==> xgifb_chrontel_tv

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>