git: openjdk/jdk-sandbox: jep486: SM related cleanup of Runtime exec ExecCommand test.

[duke]

Changeset: 2bc142e2
Branch: jep486
Author:    Roger Riggs <roger.riggs at oracle.com>
Date:      2024-10-24 19:00:13 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/2bc142e200f1fb863ef9f1a3dba9ec6948933e85

SM related cleanup of Runtime exec ExecCommand test.
Removed dead code and test data for SM tests.
Removed unused mention of AccessControlException

! test/jdk/java/lang/RuntimeTests/exec/ExecCommand.java