diff --git a/samples/simple1.dot b/samples/simple1.dot
deleted file mode 100644
index 0b74f0cf7507d8c25baf20fd32887a78613425d4..0000000000000000000000000000000000000000
--- a/samples/simple1.dot
+++ /dev/null
@@ -1,38 +0,0 @@
-digraph "Module" {
-compound=true
-subgraph add {
-label="add"
-bgcolor=ivory4
-cluster=true
-start_0_0 [label="start"];
-parameter_0_1 [label="param #1"];
-parameter_0_2 [label="param #2"];
-constant_0_3 [label="Integer8(5)"];
-add_0_6 [label="add"];
-start_0_0 -> add_0_6 [style="dashed"];
-parameter_0_1 -> add_0_6;
-parameter_0_2 -> add_0_6;
-add_0_4 [label="add"];
-start_0_0 -> add_0_4 [style="dashed"];
-add_0_6 -> add_0_4;
-constant_0_3 -> add_0_4;
-return_0_5 [label="return"];
-start_0_0 -> return_0_5 [style="dashed"];
-add_0_4 -> return_0_5;
-}
-subgraph myfunc {
-label="myfunc"
-bgcolor=ivory4
-cluster=true
-start_1_0 [label="start"];
-parameter_1_1 [label="param #1"];
-parameter_1_1 -> call_1_2;
-parameter_1_1 -> call_1_2;
-call_1_2 [label="call(add)"];
-start_1_0 -> call_1_2 [style="dashed"];
-call_1_2 -> start_0_0 [lhead=add];
-return_1_3 [label="return"];
-start_1_0 -> return_1_3 [style="dashed"];
-call_1_2 -> return_1_3;
-}
-}