Removed unused DatabaseIntrospection._name_to_index() from Oracle backend.
Removed unused DatabaseIntrospection._name_to_index() from Oracle backend.

Unused since its introduction in cac7675f247da325cb862a312804fe64845d1155.
labcodes/django,dsanders11/django,solarissmoke/django,claudep/django,mlavin/django,atul-bhouraskar/django,apollo13/django,timgraham/django,alexallah/django,apollo13/django,darjeeling/django,takis/django,solarissmoke/django,MarkusH/django,wkschwartz/django,darjeeling/django,dsanders11/django,pauloxnet/django,claudep/django,mitya57/django,monetate/django,adamchainz/django,auvipy/django,edmorley/django,tomchristie/django,blighj/django,uranusjr/django,pauloxnet/django,zsiciarz/django,whs/django,whs/django,kosz85/django,wkschwartz/django,atul-bhouraskar/django,manhhomienbienthuy/django,tysonclugg/django,schinckel/django,fenginx/django,kaedroho/django,googleinterns/django,ghedsouza/django,kosz85/django,georgemarshall/django,shaib/django,georgemarshall/django,charettes/django,treyhunner/django,elky/django,Beauhurst/django,django/django,tysonclugg/django,evansd/django,django/django,ebar0n/django,evansd/django,elky/django,solarissmoke/django,treyhunner/django,claudep/django,treyhunner/django,piquadrat/django,charettes/django,dsanders11/django,schinckel/django,piquadrat/django,savoirfairelinux/django,ifduyue/django,harisibrahimkv/django,harisibrahimkv/django,shacker/django,googleinterns/django,elky/django,dracos/django,tomchristie/django,mitya57/django,ifduyue/django,sjlehtin/django,whs/django,freakboy3742/django,MarkusH/django,darjeeling/django,alimony/django,blighj/django,etos/django,monetate/django,harisibrahimkv/django,uranusjr/django,koordinates/django,adamchainz/django,shaib/django,EmadMokhtar/Django,pauloxnet/django,ghedsouza/django,kosz85/django,savoirfairelinux/django,ebar0n/django,mitya57/django,Beauhurst/django,freakboy3742/django,apollo13/django,labcodes/django,takis/django,elky/django,timgraham/django,charettes/django,frankvdp/django,dracos/django,kaedroho/django,elena/django,ghickman/django,rsalmaso/django,felixxm/django,kosz85/django,simonw/django,frankvdp/django,zsiciarz/django,mlavin/django,timgraham/django,schinckel/django,simonw/django,jpic/django,frankvdp/django,dsanders11/django,evansd/django,auvipy/django,shacker/django,freakboy3742/django,auvipy/django,tysonclugg/django,dracos/django,ifduyue/django,edmorley/django,charettes/django,evansd/django,uranusjr/django,whs/django,googleinterns/django,labcodes/django,alimony/django,jpic/django,takis/django,fenginx/django,sjlehtin/django,zsiciarz/django,Beauhurst/django,reinout/django,claudep/django,elena/django,rsalmaso/django,adamchainz/django,fenginx/django,schinckel/django,jpic/django,koordinates/django,Beauhurst/django,theo-l/django,alexallah/django,EmadMokhtar/Django,mitya57/django,fenginx/django,mlavin/django,atul-bhouraskar/django,monetate/django,shaib/django,georgemarshall/django,mlavin/django,wkschwartz/django,alexallah/django,edmorley/django,googleinterns/django,etos/django,apollo13/django,rsalmaso/django,felixxm/django,labcodes/django,ghickman/django,ghickman/django,simonw/django,blighj/django,piquadrat/django,alimony/django,edmorley/django,atul-bhouraskar/django,alimony/django,koordinates/django,reinout/django,harisibrahimkv/django,kaedroho/django,reinout/django,monetate/django,ebar0n/django,EmadMokhtar/Django,django/django,django/django,sjlehtin/django,theo-l/django,sjlehtin/django,piquadrat/django,tomchristie/django,ifduyue/django,etos/django,auvipy/django,MarkusH/django,felixxm/django,elena/django,rsalmaso/django,MarkusH/django,shacker/django,etos/django,treyhunner/django,manhhomienbienthuy/django,manhhomienbienthuy/django,darjeeling/django,ghedsouza/django,blighj/django,frankvdp/django,reinout/django,pauloxnet/django,takis/django,koordinates/django,theo-l/django,timgraham/django,wkschwartz/django,shaib/django,adamchainz/django,ebar0n/django,manhhomienbienthuy/django,uranusjr/django,elena/django,dracos/django,solarissmoke/django,georgemarshall/django,tysonclugg/django,savoirfairelinux/django,jpic/django,felixxm/django,alexallah/django,simonw/django,shacker/django,zsiciarz/django,ghickman/django,savoirfairelinux/django,theo-l/django,tomchristie/django,ghedsouza/django