-unconditionally compile scalarproduct again

src/Makefile.am

@@ -45,10 +45,6 @@ if HAVE_POSTGRESQL
  POSTGRES_DIR = pq
 endif
 
-if HAVE_NOLIBGCRYPT19
-  SCALARPRODUCT_DIR = scalarproduct
-endif
-
 REST_DIR = rest
 
 
@@ -97,7 +93,7 @@ SUBDIRS = \
   seti \
   setu \
   consensus \
-  $(SCALARPRODUCT_DIR) \
+  scalarproduct \
   revocation \
   vpn \
   gns \