Drop VGA_BRIDGE_SETUP config option

It defaults to true, and isn't disabled anywhere in the tree.
I also couldn't think of a case where it's actually useful.

Change-Id: I126a47625d5294f3cfff225629f2a948a83c9b7e
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/1250
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/devices/Kconfig

@@ -18,13 +18,6 @@
 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 ##
 
-config VGA_BRIDGE_SETUP
-	bool "Setup bridges on path to VGA adapter"
-	default y
-	help
-	  Allow bridges to set up legacy decoding ranges for VGA. Don't disable
-	  this unless you're sure you don't want the briges setup for VGA.
-
 # TODO: Explain differences (if any) for onboard cards.
 config VGA_ROM_RUN
 	bool "Run VGA Option ROMs"

src/devices/device.c

@@ -705,7 +705,6 @@ static void avoid_fixed_resources(struct device *dev)
 	}
 }
 
-#if CONFIG_VGA_BRIDGE_SETUP
 device_t vga_pri = 0;
 static void set_vga_bridge_bits(void)
 {
@@ -781,8 +780,6 @@ static void set_vga_bridge_bits(void)
 	}
 }
 
-#endif
-
 /**
  * Assign the computed resources to the devices on the bus.
  *
@@ -964,9 +961,7 @@ void dev_configure(void)
 	struct device *root;
 	struct device *child;
 
-#if CONFIG_VGA_BRIDGE_SETUP
 	set_vga_bridge_bits();
-#endif
 
 	printk(BIOS_INFO, "Allocating resources...\n");
 

src/northbridge/amd/gx2/Kconfig

@@ -24,7 +24,7 @@ config NORTHBRIDGE_AMD_GX2
 choice
 	prompt "Framebuffer size"
 	default GX2_VIDEO_MB_8MB
-	depends on NORTHBRIDGE_AMD_GX2 && VGA_BRIDGE_SETUP
+	depends on NORTHBRIDGE_AMD_GX2
 
 config GX2_VIDEO_MB_4MB
 	bool "4MB"