nvme: remove the udev optional dependency

Upstream removed the udev dependent code in commit 4cbe5888f4bc (nvme-cli:
fabrics: remove libudev dependency).

Cc: Mamatha Inamdar <mamatha4@linux.vnet.ibm.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/nvme/nvme.mk

@@ -9,19 +9,8 @@ NVME_SITE = $(call github,linux-nvme,nvme-cli,$(NVME_VERSION))
 NVME_LICENSE = GPL-2.0+
 NVME_LICENSE_FILES = LICENSE
 
-# Yes LIBUDEV=0 means udev support enabled, LIBUDEV=1 means udev
-# support disabled.
-ifeq ($(BR2_PACKAGE_HAS_UDEV),y)
-NVME_DEPENDENCIES += udev
-NVME_MAKE_OPTS += LIBUDEV=0
-else
-NVME_MAKE_OPTS += LIBUDEV=1
-endif
-
-# LIBUDEV=1 means that libudev is _disabled_
 define NVME_BUILD_CMDS
-	$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) \
-		$(NVME_MAKE_OPTS) -C $(@D)
+	$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) -C $(@D)
 endef
 
 define NVME_INSTALL_TARGET_CMDS