lalinspiral: remove several unused functions

- while cleaning up XML I/O related code, found XLALSimInspiralChirpMassCut(), XLALSimInspiralCompMassCut(), XLALSimInspiralTotalMassCut(), LALSortSnglInspiral() which are not used by any code in lalsuite.  delete
- also obsolete LALStatus-style LALInspiralSiteTimeAndDist() is only used by one function in lalinspiral, so remove it from the exported API (change declaration to static).  there is an XLAL replacement if any code needs a function like this
47 jobs for lalmetaio_cleanup_03 in 181 minutes and 49 seconds (queued for 10 minutes and 3 seconds)