Merge pull request #1338 from galaxyproject/rm-dev-install-note

Remove note recommending installing dev versions from `planemo run` tutorial

docs/_running_intro.rst

@@ -1,17 +1,3 @@
-.. note::
-
-    Some features described in this tutorial are currently available only in
-    the development version of Planemo and may not work correctly when installing
-    the latest version from PyPI or bioconda. To install the development versions
-    of Planemo and galaxy-tool-util required, run the following commands:
-
-    ::
-
-        $ # install latest galaxy-tool-util pre-release
-        $ pip install --pre galaxy-tool-util
-        $ # install dev version of planemo
-        $ pip install https://github.com/galaxyproject/planemo/archive/master.tar.gz
-
 The Basics
 ================================