Remove inefficient ShellCheck test

In this file we declare lot of globals and source lot of code, and
basically do only that, which makes this check less useful.

src/make.skel

@@ -1,4 +1,5 @@
 #!/bin/bash
+#shellcheck disable=SC2034,SC1090
 # mkit - simple install helper
 # See LICENSE file for copyright and license details.