The cgcs-users package provides a restricted shell ibsh (Iron Bars SHell)
that is no longer being referenced in StarlingX, so we can remove this
package.
Story: 2007102
Task: 38147
Change-Id: Ic8c262d973734bb0c4ce93ed6499db1394b1e48e
Signed-off-by: Saul Wold <sgw@linux.intel.com>