remove unused rescue var
remove unused rescue var

Altiscale/aws,arnaud036/aws,evertrue/aws,ForeverOceans/aws,needle-cookbooks/chef-opscode-aws,scalp42/aws,paybyphone/aws,miketheman/aws-cookbook,TheWeatherCompany/aws,simplyadrian/aws,chef-cookbooks/aws,localytics/aws,opscode-cookbooks/aws,incent-corp/aws,BuyerQuest/aws,xacaxulu/aws,grosendorf/aws,rafaelfelix/aws,itwasntandy/aws,strebitz/aws,Tealium/aws,udomsak/aws,ubiquitousthey/aws,joshoohaah/aws