patch 8.0.1221: still too many old style tests

Problem:    Still too many old style tests.
Solution:   Convert a few more tests to new style. (Yegappan Lakshmanan,
            closes #2256)
diff --git a/src/Makefile b/src/Makefile
index a612817..75e528e 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2100,13 +2100,12 @@
 	test_listchars \
 	test_search_mbyte \
 	test_wordcount \
-	test3 test11 test12 test14 test15 test17 test19 \
-	test20 test25 test28 test29 \
-	test30 test32 test36 test37 test38 test39 \
+	test3 test11 test12 test14 test15 test17 \
+	test29 test30 test36 test37 test39 \
 	test40 test42 test44 test45 test48 test49 \
 	test50 test52 test55 test59 \
-	test64 test66 test68 test69 \
-	test70 test72 test73 test77 test79 \
+	test64 test68 test69 \
+	test70 test72 test73 test77 \
 	test83 test85 test86 test87 test88 \
 	test94 test95 test99 test108:
 	cd testdir; rm -f $@.out; $(MAKE) -f Makefile $@.out VIMPROG=../$(VIMTARGET) $(GUI_TESTARG) SCRIPTSOURCE=../$(SCRIPTSOURCE)