Revert "Minor RTI Connext DDS documentation improvements (#5606)" (#5915)

This reverts commit 590700a.

Signed-off-by: Tomoya.Fujita <[email protected]>

Author: fujitatomoya

source/Installation/RMW-Implementations/DDS-Implementations/Working-with-RTI-Connext-DDS.rst

@@ -78,30 +78,12 @@ Clone the repository for ``rmw_connextdds`` into your ROS 2 workspace and select
    $ cd ros2_ws
    $ git clone -b {DISTRO} https://github.com/ros2/rmw_connextdds src/rmw_connextdds
 
-Then, install necessary packages for RTI Connext DDS.
-
-.. code-block:: console
-
-   $ cd ..
-   $ rosdep install --from src -i
-
 Set up the environment to help colcon discover where RTI Connext is installed.
-This can be done by manually setting the environment variable ``NDDSHOME`` to the location of the RTI Connext installation, or by using a script that comes with the RTI Connext installation. For example, for version 7.3.0, you can run the following code to execute the helper script:
-
-.. code-block:: console
-
-   $ source /opt/rti.com/rti_connext_dds-7.3.0/resource/scripts/rtisetenv_x64Linux4gcc7.3.0.bash
-
-If the previous command failed, and you can't find the location of the RTI Connext installation, run this to find all Connext installations (and their corresponding helper scripts) in your system:
+This can be done by manually setting the environment variable ``NDDSHOME`` to the location of the RTI Connext installation, or by using a script that comes with the RTI Connext installation:
 
 .. code-block:: console
 
-   $ find /opt -name rtisetenv*.bash
-
-.. note::
-
-   Replace ``.bash`` with your shell if you're not using bash.
-   Possible values are: ``rtisetenv*.bash``, ``rtisetenv*.sh``, ``rtisetenv*.zsh``, ``rtisetenv*.tcsh``.
+   $ source ${RTI_CONNEXT_INSTALL_LOCATION}/resource/scripts/rtisetenv_x64Linux4gcc7.3.0.bash
 
 Make sure you have the ROS 2 environment set up: