orc: unbreak host build after auto-host-deps change

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/orc/orc.mk

@@ -7,6 +7,7 @@ ORC_VERSION = 0.4.14
 ORC_SITE = http://code.entropywave.com/download/orc/
 ORC_INSTALL_STAGING = YES
 ORC_DEPENDENCIES = host-orc
+HOST_ORC_DEPENDENCIES =
 
 define ORC_REMOVE_BUGREPORT
 	rm -f $(TARGET_DIR)/usr/bin/orc-bugreport