modules: remove obsolete comment (#12514)

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 34327

package/kernel/modules/crypto.mk

@@ -18,8 +18,6 @@ crypto_confvar=CONFIG_CRYPTO_$(word 1,$(subst =,$(space),$(1)))
 crypto_file=$(if $(findstring y,$($(call crypto_confvar,$(1)))),,$(LINUX_DIR)/crypto/$(word 2,$(subst =,$(space),$(1))).ko)
 crypto_name=$(if $(findstring y,$($(call crypto_confvar,$(1)))),,$(word 2,$(subst =,$(space),$(1))))
 
-# XXX: added CONFIG_CRYPTO_HMAC to KCONFIG so that CONFIG_CRYPTO_HASH is
-# always set, even if no hash modules are selected
 define KernelPackage/crypto-core
   SUBMENU:=$(CRYPTO_MENU)
   TITLE:=Core CryptoAPI modules