diff --git a/src/foo/Makefile b/src/foo/Makefile
deleted file mode 100644
index 278e884..0000000
--- a/src/foo/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-TROOT=../..
-include $(TROOT)/Makefile.inc
diff --git a/src/foo/foo.c b/src/foo/foo.c
deleted file mode 100644
index 5205893..0000000
--- a/src/foo/foo.c
+++ /dev/null
@@ -1,47 +0,0 @@
-#include "test.h"
-
-// dummy test
-
-static int foo(int n) {
-	int i;
-
-	for (i = 0; n > 1 && i < 100; i++) {
-		if (n % 2)
-			n = 3*n + 1;
-		else
-			n /= 2;
-	}
-	return n;
-}
-
-void test_foo() {
-	int n = foo(123);
-
-	if (n != 1)
-		error("foo(123):%d expected 1\n", n);
-}
-
-void bench_foo(int N) {
-	int i;
-
-	for (i = 0; i < N; i++)
-		foo(123);
-}
-
-unsigned short ds = 12345;
-unsigned short rs = 0;
-void bench_div_short(int N) {
-	int i;
-
-	for (i = 0; i < N; i++)
-		rs += (unsigned short)i/ds;
-}
-
-unsigned int di = 12345;
-unsigned int ri = 0;
-void bench_div_int(int N) {
-	unsigned int i;
-
-	for (i = 0; i < N; i++)
-		ri += i/di;
-}