Delete old cura executable. Cleanup for #122

diff --git a/cura b/cura
deleted file mode 100755 (executable)
index 22133cf..0000000
--- a/cura
+++ /dev/null
@@ -1,3 +0,0 @@
-## cura
-#!/bin/sh
-PYTHONPATH=. /usr/bin/python ./scripts/linux/cura.py "$@"