clone.sh: Do not clone tf-m-scripts to share folder

Jenkins will download tf-m-scripts at the beginning of job being
triggered. It is redundant to clone tf-m-scripts into share folder by
clone.sh. The one in share sholder is actually not used.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I42d7c6061da2983db1cb524f3aed8a1c4534f387
1 file changed