Remove indication of installation of bob.db.atnt.

The definition of atnt is now included in bob.bio.face.

doc/pipeline_simple_intro.rst

@@ -11,13 +11,12 @@ Pipeline Simple: Introduction to biometric recognition in practice
 .. note::
   Make sure the following conda packages are installed before following this tutorial::
 
-    conda install bob.bio.base bob.bio.face bob.db.atnt
+    conda install bob.bio.face
 
-  Also note that almost all ``bob.db.*`` packages are deprecated and they should
-  not be installed. The ``bob.bio.face`` package contains the implementation of
-  all face biometric databases. Same is true for other ``bob.bio`` packages.
+  The ``bob.bio.face`` package contains the implementation of all face biometric
+  databases. Same is true for other ``bob.bio`` packages.
 
-To run biometric experiments, we provide a generic CLI command called ``bob bio pipelines``.
+To run biometric experiments, we provide a generic CLI command called ``bob bio pipeline``.
 Such CLI command is an entry-point to several pipelines implemented in this package.
 
 In our very first example, we've shown how to compare two samples using the