Revert "Chore: Add ruby 2.0.0 to Travis CI"
Revert "Chore: Add ruby 2.0.0 to Travis CI"

This reverts commit 7d5a8d4a25f98f3ddb9e310c02803499b1a447ae.

More work is required for ruby 2.0.0 support.  Currently Grit does
not seem to support 2.0.0

Limags/githug,Gazler/githug,zachalewel/githug,mtam2/githug,HanJisoo/Test,jackmaney/githug,talexand/githug,kaylal12/githug,Gazler/githug,sideci-sample/sideci-sample-githug,youyou22/githug,legendtkl/githug,blueyi/githug,wrestt/githug,Limags/githug,mtam2/githug,ga-wdi-boston/githug,HanJisoo/Test,hydrox24/githug,raq929/githug,FP-QAs/githug,ga-wdi-boston/githug,jackmaney/githug,FP-QAs/githug,wrestt/githug,talexand/githug,kuramameng/githug,youyou22/githug,geoluther/githug,FP-QAs/githug,mtam2/githug,HanJisoo/Test,blueyi/githug,raq929/githug,stephencelis/githug,stephencelis/githug,FP-QAs/githug,resource11/githug,raq929/githug,talexand/githug,jaywon/githug,geoluther/githug,Gazler/githug,kaylal12/githug,hydrox24/githug,jaywon/githug,legendtkl/githug,wrestt/githug,youyou22/githug,legendtkl/githug,jackmaney/githug,Limags/githug,kaylal12/githug,kuramameng/githug,blueyi/githug,jaywon/githug,eshimel/githug,eshimel/githug,kuramameng/githug,zachalewel/githug,geoluther/githug,hydrox24/githug,resource11/githug,eshimel/githug,resource11/githug,sideci-sample/sideci-sample-githug,zachalewel/githug