x86: Remove CONFIG_USB_MAX_CONTROLLER_COUNT

As all x86 boards have been switched over to use DM USB, remove
CONFIG_USB_MAX_CONTROLLER_COUNT which is not used by DM USB.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Stefan Roese <sr@denx.de>

include/configs/conga-qeval20-qa3-e3845.h

@@ -23,9 +23,6 @@
 	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SATA}, \
 	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SATA_ALT}
 
-#undef CONFIG_USB_MAX_CONTROLLER_COUNT
-#define CONFIG_USB_MAX_CONTROLLER_COUNT		1
-
 #define VIDEO_IO_OFFSET				0
 #define CONFIG_X86EMU_RAW_IO
 

include/configs/dfi-bt700.h

@@ -28,9 +28,6 @@
 	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SATA}, \
 	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SATA_ALT}
 
-#undef CONFIG_USB_MAX_CONTROLLER_COUNT
-#define CONFIG_USB_MAX_CONTROLLER_COUNT		1
-
 #define CONFIG_USB_HOST_ETHER
 #define CONFIG_USB_ETHER_ASIX
 #define CONFIG_USB_ETHER_SMSC95XX

include/configs/minnowmax.h

@@ -26,9 +26,6 @@
 	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SATA}, \
 	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SATA_ALT}
 
-#undef CONFIG_USB_MAX_CONTROLLER_COUNT
-#define CONFIG_USB_MAX_CONTROLLER_COUNT		1
-
 #define VIDEO_IO_OFFSET				0
 #define CONFIG_X86EMU_RAW_IO
 

include/configs/x86-common.h

@@ -132,7 +132,6 @@
  */
 #define CONFIG_USB_EHCI_PCI
 #define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS     12
-#define CONFIG_USB_MAX_CONTROLLER_COUNT        2
 #define CONFIG_SYS_USB_EVENT_POLL
 
 #define CONFIG_USB_HOST_ETHER