drop travis

[kevmoo]

• Drop support for travis-ci
• wip

[daniel-v]

@kevmoo why was travis support dropped?

[kevmoo]

@kevmoo why was travis support dropped?

We stopped using travis for our stuff. It was a burden to maintain. 🤷

[daniel-v]

I suppose the following can be closed than (a little housekeeping):

#145
#42
#244

My 2 cents: doesn't seems to have too many questions about it, seems mono_repo is mostly used by Dart Team or at least people who use it don't use it with Travis. I guess you really disliked supporting travis:

As a community member, however, when such big changes happen, I would appreciate a removal notice. I hope I don't run into a case where I rely on something behind github.com/google or github.com/dart-lang that just gets dropped. Scary thought.

[kevmoo]

A couple of those are issue RE the migration. So I'll keep them.

FYI on support:

https://dart.dev/dart-team-packages

anything under github.com/google is NOT officially supported. Which is weird. They should call it google-community or something.

Things under github.com/dart-lang are (or should be) well supported.

Just an FYI!