xen/pciback: Remove the DEBUG option.

The latter is easily fixed - by the developer compiling the
module with -DDEBUG. And during runtime - the loglvl provides
quite a lot of useful data.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 8af0792..0b6989f 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -139,13 +139,4 @@
 
 endchoice
 
-config XEN_PCIDEV_BE_DEBUG
-	bool "Xen PCI Backend Debugging"
-	depends on XEN_PCIDEV_BACKEND
-	default n
-	help
-	  Allows to observe all of the traffic from the frontend/backend
-	  when reading and writting to the configuration registers.
-	  If in doubt, say no.
-
 endmenu
diff --git a/drivers/xen/xen-pciback/Makefile b/drivers/xen/xen-pciback/Makefile
index e79c518..2903967 100644
--- a/drivers/xen/xen-pciback/Makefile
+++ b/drivers/xen/xen-pciback/Makefile
@@ -6,7 +6,3 @@
 		 conf_space_quirks.o
 xen-pciback-$(CONFIG_XEN_PCIDEV_BACKEND_VPCI) += vpci.o
 xen-pciback-$(CONFIG_XEN_PCIDEV_BACKEND_PASS) += passthrough.o
-
-ifeq ($(CONFIG_XEN_PCIDEV_BE_DEBUG),y)
-EXTRA_CFLAGS += -DDEBUG
-endif