staging: remove staging exfat driver

This will be replaced with the driver found in newer kernels.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

package/kernel/linux/modules/fs.mk

@@ -163,30 +163,6 @@ endef
 $(eval $(call KernelPackage,fs-efivarfs))
 
 
-define KernelPackage/fs-exfat
-  SUBMENU:=$(FS_MENU)
-  TITLE:=exFAT filesystem support
-  KCONFIG:= \
-	CONFIG_EXFAT_FS \
-	CONFIG_EXFAT_DONT_MOUNT_VFAT=y \
-	CONFIG_EXFAT_DISCARD=y \
-	CONFIG_EXFAT_DELAYED_SYNC=n \
-	CONFIG_EXFAT_KERNEL_DEBUG=n \
-	CONFIG_EXFAT_DEBUG_MSG=n \
-	CONFIG_EXFAT_DEFAULT_CODEPAGE=437 \
-	CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8"
-  FILES:=$(LINUX_DIR)/drivers/staging/exfat/exfat.ko
-  AUTOLOAD:=$(call AutoLoad,30,exfat,1)
-  DEPENDS:=@!(LINUX_4_14||LINUX_4_19) +kmod-nls-base
-endef
-
-define KernelPackage/fs-exfat/description
- Kernel module for exFAT filesystem support
-endef
-
-$(eval $(call KernelPackage,fs-exfat))
-
-
 define KernelPackage/fs-exportfs
   SUBMENU:=$(FS_MENU)
   TITLE:=exportfs kernel server support