linux: remove dirs dependency

The "dirs" dependency is redundant because now the "generic-package"
infrastructure add automatically the "dirs" dependency so just remove
the redundant references.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

linux/linux.mk

@@ -302,12 +302,12 @@ include $(sort $(wildcard linux/linux-ext-*.mk))
 $(eval $(generic-package))
 
 ifeq ($(BR2_LINUX_KERNEL),y)
-linux-menuconfig linux-xconfig linux-gconfig linux-nconfig linux26-menuconfig linux26-xconfig linux26-gconfig linux26-nconfig: dirs linux-configure
+linux-menuconfig linux-xconfig linux-gconfig linux-nconfig linux26-menuconfig linux26-xconfig linux26-gconfig linux26-nconfig: linux-configure
 	$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) \
 		$(subst linux-,,$(subst linux26-,,$@))
 	rm -f $(LINUX_DIR)/.stamp_{built,target_installed,images_installed}
 
-linux-savedefconfig linux26-savedefconfig: dirs linux-configure
+linux-savedefconfig linux26-savedefconfig: linux-configure
 	$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) \
 		$(subst linux-,,$(subst linux26-,,$@))