Adding pts/* defeats the purpose of securetty. Let containers add it if
needed as described in #830255.
This reverts commit 8b5c7cace3
A testsuite is also available. Instruction on how to run this testsuite are available in tests/README -- Balint Reczey <rbalint@ubuntu.com>, Sat, 12 Aug 2017 18:46:44 -0400