fix(ci): remove leftover optee spmc based test config

The optee spmc based test configurations were removed in commit
"4c343e5". However, the test config [1] was left behind.
This commit removes it for consistency.

[1] tf-l1-build-fvp/fvp-optee-as-spm:nil

Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: I9a80cc7a9ea2054527acb7e71c1346cdd879322f
1 file changed