fix legacy commands test for cmds lib changes

cmd.Call no longer returns an error

License: MIT
Signed-off-by: Steven Allen <steven@stebalien.com>

commands/legacy/legacy_test.go

@@ -78,10 +78,7 @@ func TestNewCommand(t *testing.T) {
 
 	var env oldcmds.Context
 
-	err = root.Call(req, re, &env)
-	if err != nil {
-		t.Fatal(err)
-	}
+	root.Call(req, re, &env)
 
 	expected := `{"Value":"Test."}
 `