Remove stale Makefile lines for old test suite
diff --git a/tests/Makefile b/tests/Makefile
index 4fe75a8..b86702c 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -368,10 +368,6 @@
 	echo "  CC    $<"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $<	$(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
 
-test_suite_pbkdf2$(EXEXT): test_suite_pbkdf2.c $(DEP)
-	echo "  CC    $<"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $<	$(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
 test_suite_pem$(EXEXT): test_suite_pem.c $(DEP)
 	echo "  CC    $<"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $<	$(LOCAL_LDFLAGS) $(LDFLAGS) -o $@