How can you remove references to submodules in a git repo which no longer uses submodules (merged them) so that bazaar can import it?
bzr: ERROR: The repository you are fetching from contains submodules, which are not yet supported.
It should be possible according to jelmer: https://bugs.launchpad.net/bzr/+bug/402814/comments/43
There is no way to tell the import system to just ignore history. You could provide a custom repository that has the submodules filtered out of the history or filter them out of your history on github.