Revert "- helpers: add patch hooks"

This reverts commit 9bbf8f67bc.

make/buildsystem-helpers.mk

@@ -139,9 +139,6 @@ endef
 
 # apply patch sets
 define apply_patches
-	@$(call MESSAGE,"Patching")
-	$(foreach hook,$($(PKG)_PRE_PATCH_HOOKS),$(call $(hook))$(sep))
-	$(Q)( \
 	l=$(strip $(2)); test -z $$l && l=1; \
 	for i in $(1); do \
 		if [ -e $$i -o -e $(PKG_PATCHES_DIR)/$$i ]; then \
@@ -163,9 +160,7 @@ define apply_patches
 				fi; \
 			fi; \
 		fi; \
-	done; \
-	)
-	$(foreach hook,$($(PKG)_POST_PATCH_HOOKS),$(call $(hook))$(sep))
+	done
 endef
 
 # apply patch sets automatically