Convert Unlinked Git Submodules to Intersphinx

These projects don't have any docs linked in the current documentation,
so there is little reason to include their submodules here.

Converting the non-archived projects to intersphinx link should reduce
the build time.

Change-Id: Ifdb614d53ac5cbdfa4c94ac09d990f796004cf10
Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>

1 files changed, 0 insertions, 0 deletions

diff --git a/docs/submodules/copper b/docs/submodules/copper
deleted file mode 160000
-Subproject 505dc7754239feaa28c736abb3019598db2a1a5