MIPS: remove obsolete Kconfig macros

The support for PB1100, PB1500, and PB1550 got merged into the code for
DB1000 and DB1550 code in v3.7. When that was done the three related
Kconfig symbols were dropped. But not all related Kconfig macros were
removed. Do so now.

Note that the PB1100 code in the Au1100 LCD driver is removed entirely
and not converted to use its current Kconfig macro. That is done because
the macros it uses (PB1100_G_CONTROL, PB1100_G_CONTROL_BL, and
PB1100_G_CONTROL_VDD) are never defined. Actually only one of these was
ever defined (PB1100_G_CONTROL) but that define was removed in v2.6.34.
So, as far as I can tell, this code could have never compiled.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Patchwork: http://patchwork.linux-mips.org/patch/5040/
Acked-by: John Crispin <blogic@openwrt.org>

arch/mips/alchemy/Platform

@@ -5,32 +5,14 @@ platform-$(CONFIG_MIPS_ALCHEMY) += alchemy/common/
 
 
 #
-# AMD Alchemy Pb1100 eval board
-#
-platform-$(CONFIG_MIPS_PB1100)	+= alchemy/devboards/
-load-$(CONFIG_MIPS_PB1100)	+= 0xffffffff80100000
-
-#
-# AMD Alchemy Pb1500 eval board
-#
-platform-$(CONFIG_MIPS_PB1500)	+= alchemy/devboards/
-load-$(CONFIG_MIPS_PB1500)	+= 0xffffffff80100000
-
-#
-# AMD Alchemy Pb1550 eval board
-#
-platform-$(CONFIG_MIPS_PB1550)	+= alchemy/devboards/
-load-$(CONFIG_MIPS_PB1550)	+= 0xffffffff80100000
-
-#
-# AMD Alchemy Db1000/Db1500/Db1100 eval boards
+# AMD Alchemy Db1000/Db1500/Pb1500/Db1100/Pb1100 eval boards
 #
 platform-$(CONFIG_MIPS_DB1000)	+= alchemy/devboards/
 cflags-$(CONFIG_MIPS_DB1000)	+= -I$(srctree)/arch/mips/include/asm/mach-db1x00
 load-$(CONFIG_MIPS_DB1000)	+= 0xffffffff80100000
 
 #
-# AMD Alchemy Db1200/Pb1200/Db1550/Db1300 eval boards
+# AMD Alchemy Db1200/Pb1200/Db1550/Pb1550/Db1300 eval boards
 #
 platform-$(CONFIG_MIPS_DB1235)	+= alchemy/devboards/
 cflags-$(CONFIG_MIPS_DB1235)	+= -I$(srctree)/arch/mips/include/asm/mach-db1x00

drivers/video/au1100fb.c

@@ -113,13 +113,6 @@ static int au1100fb_fb_blank(int blank_mode, struct fb_info *fbi)
 	case VESA_NO_BLANKING:
 		/* Turn on panel */
 		fbdev->regs->lcd_control |= LCD_CONTROL_GO;
-#ifdef CONFIG_MIPS_PB1100
-			if (fbdev->panel_idx == 1) {
-				au_writew(au_readw(PB1100_G_CONTROL)
-					  | (PB1100_G_CONTROL_BL | PB1100_G_CONTROL_VDD),
-			PB1100_G_CONTROL);
-			}
-#endif
 		au_sync();
 		break;
 
@@ -128,13 +121,6 @@ static int au1100fb_fb_blank(int blank_mode, struct fb_info *fbi)
 	case VESA_POWERDOWN:
 		/* Turn off panel */
 		fbdev->regs->lcd_control &= ~LCD_CONTROL_GO;
-#ifdef CONFIG_MIPS_PB1100
-			if (fbdev->panel_idx == 1) {
-				au_writew(au_readw(PB1100_G_CONTROL)
-				  	  & ~(PB1100_G_CONTROL_BL | PB1100_G_CONTROL_VDD),
-			PB1100_G_CONTROL);
-			}
-#endif
 		au_sync();
 		break;
 	default: