Missing changes from update install-p4-tools.sh to use P4Runtime v1.0

Change-Id: I89aca8b081bd05f10c6a8ad88322fd132316b581
diff --git a/tools/dev/p4vm/user-bootstrap.sh b/tools/dev/p4vm/user-bootstrap.sh
index 5620506..fd1b3c3 100755
--- a/tools/dev/p4vm/user-bootstrap.sh
+++ b/tools/dev/p4vm/user-bootstrap.sh
@@ -8,7 +8,7 @@
 cp /etc/skel/.bash_logout ~/
 
 # ONOS
-git clone https://github.com/opennetworkinglab/onos.git --depth 1 -b ${ONOS_BRANCH}
+git clone https://github.com/opennetworkinglab/onos.git -b ${ONOS_BRANCH}
 tee -a ~/.bashrc <<EOF
 
 # ONOS