OSPL_URI warning obnoxious

[paulbovbel]

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Feature request

Feature description

The warning implemented here (https://github.com/ros2/rosidl_typesupport_opensplice/blob/master/opensplice_cmake_module/env_hook/opensplice.sh.in#L71) is a little overwhelming, it appears during every environment load (e.g. new bash shell) when using a custom OSPL_URI.

Would you take a PR to remove it? I would think if the user is setting OSPL_URI, they are doing so intentionally.

[clalancette]

Up until recently, the install instructions were telling the user to always override OSPL_URI. The combination of that plus the warning are what allowed us to find that problem and fix the documentation for it.

Now that the install documentation is fixed, I personally think that it would be fine to remove the warning, but I'd be interested if anyone else on @ros2/team has a different opinion.

[wjwwood]

Now that the install documentation is fixed, I personally think that it would be fine to remove the warning, but I'd be interested if anyone else on @ros2/team has a different opinion.

Sounds good to me.