cleanup switch_to supplier and make facebook image https

app/controllers/suppliers/suppliers_controller.rb

@@ -29,14 +29,6 @@ module Suppliers
       render json: current_supplier
     end
 
-    def switch_to
-      @switch_supplier = Supplier.find(params[:id])
-      #TODO sessions currently not working, just tokens
-      session[:supplier_id] = @switch_supplier.id if @switch_supplier.employee_ids.include? current_employee.id
-      render json: {ok: true}
-      #redirect_to supplier_root_path(other: '/my-account')
-    end
-
     def mark_as_open
       current_supplier.mark_as_open!
       head :ok