CLN: use self.dtype rather than self.categories/ordered in Categorical (#22513)
CLN: use self.dtype rather than self.categories/ordered in Categorical (#22513)


dsm054/pandas,cython-testbed/pandas,amolkahat/pandas,jorisvandenbossche/pandas,TomAugspurger/pandas,cython-testbed/pandas,GuessWhoSamFoo/pandas,amolkahat/pandas,jorisvandenbossche/pandas,jorisvandenbossche/pandas,toobaz/pandas,gfyoung/pandas,gfyoung/pandas,harisbal/pandas,MJuddBooth/pandas,datapythonista/pandas,TomAugspurger/pandas,GuessWhoSamFoo/pandas,GuessWhoSamFoo/pandas,cbertinato/pandas,cbertinato/pandas,harisbal/pandas,rs2/pandas,harisbal/pandas,toobaz/pandas,toobaz/pandas,MJuddBooth/pandas,cbertinato/pandas,jreback/pandas,jreback/pandas,rs2/pandas,dsm054/pandas,pandas-dev/pandas,toobaz/pandas,cython-testbed/pandas,pandas-dev/pandas,amolkahat/pandas,rs2/pandas,jreback/pandas,dsm054/pandas,pandas-dev/pandas,jorisvandenbossche/pandas,GuessWhoSamFoo/pandas,cython-testbed/pandas,amolkahat/pandas,cython-testbed/pandas,jreback/pandas,rs2/pandas,gfyoung/pandas,GuessWhoSamFoo/pandas,MJuddBooth/pandas,TomAugspurger/pandas,datapythonista/pandas,toobaz/pandas,datapythonista/pandas,dsm054/pandas,amolkahat/pandas,harisbal/pandas,MJuddBooth/pandas,datapythonista/pandas,harisbal/pandas,gfyoung/pandas,dsm054/pandas,cbertinato/pandas,gfyoung/pandas,cbertinato/pandas,pandas-dev/pandas,jreback/pandas,TomAugspurger/pandas,MJuddBooth/pandas