Re:#15794 remove legacy lines in package mdadm install

From: Gergely Imreh <imrehg@gmail.com>

Signed-off-by: Gergely Imreh <imrehg@gmail.com>
---
 install/mdadm.install |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/install/mdadm.install b/install/mdadm.install
index 9e9a173..e8404c2 100644
--- a/install/mdadm.install
+++ b/install/mdadm.install
@@ -8,7 +8,3 @@ post_upgrade() {
     echo "Please update your /etc/mkinitcpio.conf accordingly."
   fi
 }
-
-op=$1
-shift
-$op $*