- Removed no longer applicable assert from VIDEO_START(generic)

- Removed VIDEO_START(generic) from drivers that didn't need it.  This leaves about 8 drivers with it.

src/emu/video/generic.c

@@ -308,8 +308,6 @@ void generic_video_init(running_machine *machine)
 
 VIDEO_START( generic )
 {
-	assert_always(videoram_size != 0, "VIDEO_START(generic) requires non-zero videoram_size");
-
 	/* allocate the temporary bitmap */
 	tmpbitmap = auto_bitmap_alloc(machine->screen[0].width, machine->screen[0].height, machine->screen[0].format);
 }

src/mame/drivers/momoko.c

@@ -270,7 +270,6 @@ static MACHINE_DRIVER_START( momoko )
 	MDRV_GFXDECODE(momoko)
 	MDRV_PALETTE_LENGTH(512)
 
-	MDRV_VIDEO_START(generic)
 	MDRV_VIDEO_UPDATE(momoko)
 
 	/* sound hardware */

src/mame/drivers/rollrace.c

@@ -256,7 +256,6 @@ static MACHINE_DRIVER_START( rollrace )
 	MDRV_PALETTE_LENGTH(256)
 
 	MDRV_PALETTE_INIT(wiz)
-	MDRV_VIDEO_START(generic)
 	MDRV_VIDEO_UPDATE(rollrace)
 
 	/* sound hardware */

src/mame/drivers/shougi.c

@@ -91,13 +91,9 @@ PROM  : Type MB7051
 #include "driver.h"
 #include "cpu/z80/z80.h"
 #include "sound/ay8910.h"
-
-//VIDEO_START( shougi )
-//{
-//  generic_vh_start();
-//}
-
 #include "video/resnet.h"
+
+
 /***************************************************************************
 
   Convert the color PROMs into a more useable format.
@@ -180,8 +176,7 @@ int offs;
 			*BITMAP_ADDR16(bitmap, 255-sy, 255-(sx*4 + x)) = color*4 + data;
 		}
 	}
-	/* copy the character mapped graphics */
-	//copybitmap(bitmap,tmpbitmap,0,0,0,0,&machine->screen[0].visarea,TRANSPARENCY_NONE,0);
+
 	return 0;
 }
 
@@ -385,7 +380,6 @@ static MACHINE_DRIVER_START( shougi )
 	MDRV_PALETTE_LENGTH(32)
 
 	MDRV_PALETTE_INIT(shougi)
-	MDRV_VIDEO_START(generic)
 	MDRV_VIDEO_UPDATE(shougi)
 
 	/* sound hardware */

src/mame/drivers/skychut.c

@@ -777,7 +777,6 @@ static MACHINE_DRIVER_START( iremm10 )
 	MDRV_COLORTABLE_LENGTH(2*8)
 
 	MDRV_PALETTE_INIT(skychut)
-	//MDRV_VIDEO_START(generic)
 	MDRV_VIDEO_START(iremm10)
 	MDRV_VIDEO_UPDATE(iremm10)
 

src/mame/drivers/subs.c

@@ -215,7 +215,6 @@ static MACHINE_DRIVER_START( subs )
 
 
 	MDRV_PALETTE_INIT(subs)
-	MDRV_VIDEO_START(generic)
 	MDRV_VIDEO_UPDATE(subs)