patch 8.2.1295: tests 44 and 99 are old style

Problem:    Tests 44 and 99 are old style.
Solution:   Convert to new style tests. (Yegappan Lakshmanan, closes #6536)
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index d517667..b2d9ac6 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -14,9 +14,7 @@
 # Tests that run on all systems.
 SCRIPTS_ALL = \
 	test42.out \
-	test44.out \
-	test70.out \
-	test99.out
+	test70.out
 
 # Tests that run on most systems, but not on Amiga.
 SCRIPTS_MORE1 = \