Removed deprecated callValidator call.

core/block_events.js

@@ -170,9 +170,6 @@ Blockly.Events.Change.prototype.run = function(forward) {
     case 'field':
       var field = block.getField(this.name);
       if (field) {
-        // Run the validator for any side-effects it may have.
-        // The validator's opinion on validity is ignored.
-        field.callValidator(value);
         field.setValue(value);
       } else {
         console.warn("Can't set non-existent field: " + this.name);