- also remove references to glue from a few comments
- this removes the only dependence on glue from lalinference
- the conversion from glue.pipeline to lal.pipeline has not been tested.  the glue.pipeline module was never ported to python 3 so anything relying on it has been non-functional for years, and, therefore, is likely also bit-rotted in other ways.  it is left as an exercise to the lalinference developers to restore these codes to a working state if desired.