toolchain/kernel-headers: don't hide 2.6.27 if RECENT isn't enabled

toolchain/kernel-headers/Config.in

@@ -65,7 +65,6 @@ choice
 		bool "Linux 2.6.26.x kernel headers"
 
 	config BR2_KERNEL_HEADERS_2_6_27
-		depends on BR2_RECENT
 		bool "Linux 2.6.27.x kernel headers"
 
 	config BR2_KERNEL_HEADERS_SNAP