specs: nested expect calls don't need `require "specl"`.
specs: nested expect calls don't need `require "specl"`.

* specs/matchers_spec.yaml (contain matcher, match matcher):
Remove noisy require and `specl.` table qualifiers.

Signed-off-by: Gary V. Vaughan <f9023000f29773649f3850298becb9544b5fd6a9@gnu.org>

gvvaughan/specl