Revert whitespace changes

Author: blink1073

lib/matplotlib/backends/web_backend/mpl.js

@@ -426,7 +426,6 @@ mpl.findpos = function(e) {
 };
 
 mpl.figure.prototype.mouse_event = function(event, name) {
-
     var canvas_pos = mpl.findpos(event)
 
     if (name === 'button_press')