ShellPkg/alias: Return status for alias deletion

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Tapan Shah <tapandshah@hpe.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
(cherry picked from commit 7bd5a2c81ed5bc52ed63b348fcb1686f1fb5b398)
1 file changed