remove dcs_classifier.checksum from Makefile

src/gen/Makefile.am

@@ -24,7 +24,7 @@ endif
 # -- the classifier
 
 # serialize build
-dcs_classifier.checksum dcs_classifier.h dcs_type.c: dcs_classifier.c
+dcs_classifier.h dcs_type.c: dcs_classifier.c
 
 dcs_classifier.c: $(srcdir)/gen_dcs_classifier.pl dbfile $(srcdir)/../classes.conf
 	@ if $(AM_V_P); then set -x; else echo "  GEN      dcs_classifier.c ... "; fi; \
@@ -121,5 +121,4 @@ CLEANFILES = \
 	fixup.out \
 	dcs.db \
 	dcs.db.tstamp \
-	dbfile \
-	dcs_classifier.checksum
+	dbfile