Remove redundant override of _validateCell from fast_temporal_memory.py
Remove redundant override of _validateCell from fast_temporal_memory.py

neuroidss/nupic,neuroidss/nupic,runt18/nupic,go-bears/nupic,vitaly-krugl/nupic,numenta/nupic,breznak/nupic,subutai/nupic,rhyolight/nupic,blueburningcoder/nupic,jcasner/nupic,lscheinkman/nupic,rhyolight/nupic,alfonsokim/nupic,breznak/nupic,pulinagrawal/nupic,go-bears/nupic,BoltzmannBrain/nupic,EricSB/nupic,rcrowder/nupic,badlogicmanpreet/nupic,rcrowder/nupic,pulinagrawal/nupic,marionleborgne/nupic,lscheinkman/nupic,arhik/nupic,alfonsokim/nupic,cogmission/nupic,alfonsokim/nupic,vitaly-krugl/nupic,runt18/nupic,arhik/nupic,scottpurdy/nupic,scottpurdy/nupic,BoltzmannBrain/nupic,scottpurdy/nupic,marionleborgne/nupic,BoltzmannBrain/nupic,breznak/nupic,runt18/nupic,lscheinkman/nupic,badlogicmanpreet/nupic,marionleborgne/nupic,numenta-ci/nupic,badlogicmanpreet/nupic,blueburningcoder/nupic,go-bears/nupic,subutai/nupic,cogmission/nupic,neuroidss/nupic,ywcui1990/nupic,numenta-ci/nupic,blueburningcoder/nupic,jcasner/nupic,numenta/nupic,cogmission/nupic,rcrowder/nupic,ywcui1990/nupic,rhyolight/nupic,ywcui1990/nupic,EricSB/nupic,subutai/nupic,jcasner/nupic,numenta-ci/nupic,vitaly-krugl/nupic,numenta/nupic,pulinagrawal/nupic,EricSB/nupic,arhik/nupic