install: drop setting ownership

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@
 override CPPFLAGS += -DAUFHSM_CMD=\"/usr/bin/aufhsm\"
 override CFLAGS += -O -Wall
 INSTALL ?= install
-Install = ${INSTALL} -o root -g root -p
+Install = ${INSTALL} -p
 ManDir = /usr/share/man
 
 #