Revert assignments back to "var" from "let"
Revert assignments back to "var" from "let"

The variables in question are defined for function scope, so it was pointless and unnecessary to bind them to block scope.

softlayer/sl-ember-components,Suven/sl-ember-components,erangeles/sl-ember-components,notmessenger/sl-ember-components,theoshu/sl-ember-components,SpikedKira/sl-ember-components,juwara0/sl-ember-components,alxyuu/sl-ember-components,erangeles/sl-ember-components,alxyuu/sl-ember-components,softlayer/sl-ember-components,azizpunjani/sl-ember-components,notmessenger/sl-ember-components,Suven/sl-ember-components,SpikedKira/sl-ember-components,azizpunjani/sl-ember-components,juwara0/sl-ember-components,theoshu/sl-ember-components