CLN: assorted pytables cleanups, remove unwanted assertion (#29982)
CLN: assorted pytables cleanups, remove unwanted assertion (#29982)


datapythonista/pandas,jreback/pandas,datapythonista/pandas,jreback/pandas,rs2/pandas,gfyoung/pandas,TomAugspurger/pandas,jorisvandenbossche/pandas,pandas-dev/pandas,jorisvandenbossche/pandas,datapythonista/pandas,gfyoung/pandas,gfyoung/pandas,jreback/pandas,dsm054/pandas,rs2/pandas,dsm054/pandas,rs2/pandas,jorisvandenbossche/pandas,jreback/pandas,datapythonista/pandas,dsm054/pandas,gfyoung/pandas,gfyoung/pandas,pandas-dev/pandas,jreback/pandas,TomAugspurger/pandas,TomAugspurger/pandas,rs2/pandas,pandas-dev/pandas,jorisvandenbossche/pandas,pandas-dev/pandas,dsm054/pandas,dsm054/pandas,TomAugspurger/pandas