Remove topsecret testing API key
Remove topsecret testing API key

Bombsheller/spree_easypost,GammaHydro/spree_easypost,solidusio-contrib/solidus_easypost,njakic/spree_easypost,leggers/spree_easypost,leggers/spree_easypost,solidusio-contrib/solidus_easypost,StemboltHQ/spree_easypost,solidusio-contrib/solidus_easypost,Bombsheller/spree_easypost