--- a/unit-tests/Makefile
+++ b/unit-tests/Makefile
@@ -188,7 +188,6 @@ TESTS+=		dotwait
 TESTS+=		envfirst
 TESTS+=		error
 TESTS+=		# escape	# broken by reverting POSIX changes
-TESTS+=		export
 TESTS+=		export-all
 TESTS+=		export-env
 TESTS+=		export-variants
@@ -285,7 +284,6 @@ TESTS+=		sh-leading-plus
 TESTS+=		sh-meta-chars
 TESTS+=		sh-multi-line
 TESTS+=		sh-single-line
-TESTS+=		shell-csh
 TESTS+=		shell-custom
 .if exists(/bin/ksh)
 TESTS+=		shell-ksh
@@ -321,7 +319,6 @@ TESTS+=		var-op-append
 TESTS+=		var-op-assign
 TESTS+=		var-op-default
 TESTS+=		var-op-expand
-TESTS+=		var-op-shell
 TESTS+=		var-op-sunsh
 TESTS+=		var-recursive
 TESTS+=		varcmd