Remove few refercences left to tempest-lib

A few places in docs / comments still refer to tempest-lib.
Cleaning those up.

Change-Id: I6a15a6e7e58a49a39b3955c60e16d0c196ec154c
diff --git a/doc/source/library.rst b/doc/source/library.rst
index 64bd2c2..a89512c 100644
--- a/doc/source/library.rst
+++ b/doc/source/library.rst
@@ -7,15 +7,14 @@
 test suites an interface for reusing pieces of tempest code. Any public
 interface that lives in tempest/lib in the tempest repo is treated as a stable
 public interface and it should be safe to external consume that. Every effort
-goes into maintaining backwards compatibility with any change. Just as with
-tempest-lib the library is self contained and doesn't have any dependency on
-other tempest internals outside of lib. (including no usage of tempest
-configuration)
+goes into maintaining backwards compatibility with any change.
+The library is self contained and doesn't have any dependency on
+other tempest internals outside of lib (including no usage of tempest
+configuration).
 
 Stability
 ---------
-Just as tempest-lib before it any code that lives in tempest/lib will be treated
-as a stable interface, nothing has changed in regards to interface stability.
+Any code that lives in tempest/lib will be treated as a stable interface.
 This means that any public interface under the tempest/lib directory is
 expected to be a stable interface suitable for public consumption. However, for
 any interfaces outside of tempest/lib in the tempest tree (unless otherwise