Merge pull request #1448 from Bastian-Krause/bst/lg-colored-steps

doc/usage: adjust docs for legacy --lg-colored-steps, LG_COLOR_SCHEME

Author: Bastian-Krause

doc/usage.rst

@@ -447,12 +447,9 @@ Other labgrid-related pytest plugin options are:
   If option is specified without path the current working directory is used.
 
 ``--lg-colored-steps``
-  Enables the ColoredStepReporter.
-  Different events have different colors.
-  The more colorful, the more important.
-  In order to make less important output "blend into the background" different
-  color schemes are available.
-  See :ref:`LG_COLOR_SCHEME <usage-lgcolorscheme>`.
+  Previously enabled the ColoredStepReporter, which has been removed with the
+  StepLogger introduction.
+  Kept for compatibility reasons without effect.
 
 ``--lg-initial-state=STATE_NAME``
   Sets the Strategy's initial state.
@@ -470,19 +467,6 @@ LG_ENV
 ^^^^^^
 Behaves like ``LG_ENV`` for :doc:`labgrid-client <man/client>`.
 
-.. _usage-lgcolorscheme:
-
-LG_COLOR_SCHEME
-^^^^^^^^^^^^^^^
-Influences the color scheme used for the Colored Step Reporter.
-``dark`` is meant for dark terminal background.
-``light`` is optimized for light terminal background.
-``dark-256color`` and ``light-256color`` are respective variants for terminals
-that support 256 colors.
-By default, ``dark`` or ``dark-256color`` (depending on the terminal) are used.
-
-Takes effect only when used with ``--lg-colored-steps``.
-
 LG_PROXY
 ^^^^^^^^
 Specifies a SSH proxy host to be used for port forwards to access the