rspec/rspec-core — pull request #1156 by myronmarston (2013-11-06 02:42:29+00:00)
Title: Remove shared example warning logic for RSpec 1 => 2 upgrades.

We don't need it in RSpec 3. (It's still in RSpec 2.99).

This solves #1148 for master. I'll work on a separate PR to fix it for 2.99 (which will keep the warning).