Remove theora transport

[ijnek]

As discussed in #4 and #39, theora image transport seems to not be used at all and doesn't work...

As posted in 2013 - #4 (comment)

Fixing this would require to basically rewrite the whole plugin and design different message types that allow to resend headers and a certain rate and furthermore signal the content of each compressed image packet (header/data). Even this approach would be a hack since there are other streaming formats out there which encode "header" information along with the stream. Hence, since theora is kind of outdated, it would make more sense to focus on the integration of a more recent codes, such as vp8 into ROS.

If it never really worked, why not remove it? (Specifically on the ros2 branch)

[ijnek]

Any of the maintainers have thoughts on this?

[ijnek]

If there are no objections, I'm going to go ahead and deprecate theora_image_transport.