Revert "Update gatsby-browser.js (#3694)"
Revert "Update gatsby-browser.js (#3694)"

This reverts commit 644d081af58a19aabcff04fcdc98c22e2cf2afb6.

fk/gatsby,gatsbyjs/gatsby,0x80/gatsby,mingaldrichgan/gatsby,mingaldrichgan/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,0x80/gatsby,0x80/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,fk/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,mingaldrichgan/gatsby,ChristopherBiscardi/gatsby,fk/gatsby,ChristopherBiscardi/gatsby