For posterity, we can use custom CSS to hide this little download icon
._pB0Q3{ display:none; }
http://community.retool.com/t/how-to-use-custom-css-in-retool-apps/17300
And I've created a request to fix this going forward 
For posterity, we can use custom CSS to hide this little download icon
._pB0Q3{ display:none; }
http://community.retool.com/t/how-to-use-custom-css-in-retool-apps/17300
And I've created a request to fix this going forward