common: No longer need to find the project ID

On GitLab.com the API call to find the template project information to
retrieve it's ID fails with a 500 Server Error message.  This is
believed to be due to the execution time of the call being exceeded on a
server with such a large number of projects.  It appears that we no
longer need to use this API as we can access the projects artifacts
using the project name directly.

Changelog: bug
Signed-off-by: Drew Reed <Drew.Reed@arm.com>