Build Docs: Remove Workaround Copy Logic

The docs link on trustedfirmware.org has been updated
to the latest path of documentation.

The workaround copy logic could be removed.

Change-Id: Id18b6fc76b2202e6bbed694708ca91fb5a2b7d65
Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
1 file changed