The flow_control_ticketholder library contains a long list of some relatively basic header files in its hdrs section, which as far as I understand it is meant to be header files provided by that library. I think something during the bazel conversion must have gone wrong here, so we should remove these unneeded headers and instead include their owning libraries in the deps, if flow_control_ticketholder is in fact depending on them.

https://github.com/10gen/mongo/blob/1c15500a2a6d0730efb2207f280c7a6721221288/src/mongo/db/concurrency/BUILD.bazel#L83

There may be other examples in that BUILD.bazel file that we might want to consider cleaning up as well.