Remove the old code for attr_.
Remove the old code for attr_.

davidmsibley/dygraphs,reinert/dygraphs,timeu/dygraphs,mariolll/dygraphs,mcanthony/dygraphs,mantyr/dygraphs,Akiyah/dygraphs,petechap/dygraphs,jmptrader/dygraphs,reinert/dygraphs,Yong-Lee/dygraphs,danvk/dygraphs,mariolll/dygraphs,timeu/dygraphs,jmptrader/dygraphs,pshevtsov/dygraphs,reinert/dygraphs,grantadesign/dygraphs,danvk/dygraphs,grantadesign/dygraphs,witsa/dygraphs,mcanthony/dygraphs,mcanthony/dygraphs,vhotspur/dygraphs,witsa/dygraphs,davidmsibley/dygraphs,panuhorsmalahti/dygraphs,jmptrader/dygraphs,pshevtsov/dygraphs,socib/dygraphs,socib/dygraphs,mariolll/dygraphs,mariolll/dygraphs,grantadesign/dygraphs,witsa/dygraphs,kbaggott/dygraphs,kbaggott/dygraphs,panuhorsmalahti/dygraphs,petechap/dygraphs,timeu/dygraphs,kbaggott/dygraphs,jmptrader/dygraphs,panuhorsmalahti/dygraphs,mantyr/dygraphs,petechap/dygraphs,kbaggott/dygraphs,danvk/dygraphs,reinert/dygraphs,klausw/dygraphs,davidmsibley/dygraphs,klausw/dygraphs,klausw/dygraphs,mariolll/dygraphs,kbaggott/dygraphs,pshevtsov/dygraphs,Akiyah/dygraphs,reinert/dygraphs,timeu/dygraphs,klausw/dygraphs,petechap/dygraphs,Yong-Lee/dygraphs,klausw/dygraphs,mantyr/dygraphs,Yong-Lee/dygraphs,mcanthony/dygraphs,socib/dygraphs,grantadesign/dygraphs,vhotspur/dygraphs,witsa/dygraphs,danvk/dygraphs,timeu/dygraphs,vhotspur/dygraphs,mcanthony/dygraphs,danvk/dygraphs,davidmsibley/dygraphs,pshevtsov/dygraphs,Yong-Lee/dygraphs,jmptrader/dygraphs,socib/dygraphs,Akiyah/dygraphs,Akiyah/dygraphs,Yong-Lee/dygraphs,vhotspur/dygraphs,mantyr/dygraphs,panuhorsmalahti/dygraphs,petechap/dygraphs,Akiyah/dygraphs,panuhorsmalahti/dygraphs,mantyr/dygraphs,pshevtsov/dygraphs,vhotspur/dygraphs,witsa/dygraphs,davidmsibley/dygraphs,grantadesign/dygraphs