Remove unneeded check in Arduino generator as per...

Remove unneeded check in Arduino generator as per carlospamg/ardublockly@c400ca83-b69d-9dd7-9705-49c6b8615e23

generators/arduino.js

@@ -111,7 +111,6 @@ Blockly.Arduino.init = function() {
   // Create a dictionary of pins to check if their use conflict
   Blockly.Arduino.pins_ = Object.create(null);
   
-  if (Blockly.Variables) {
   if (!Blockly.Arduino.variableDB_) {
     Blockly.Arduino.variableDB_ = new Blockly.Names(Blockly.Arduino.RESERVED_WORDS_);
   } else {
@@ -149,7 +148,7 @@ Blockly.Arduino.init = function() {
     variableDeclarations.push(variableWithType[name] + ' ' + name + ';');
   }
   Blockly.Arduino.definitions_['variables'] = variableDeclarations.join('\n') + '\n';
-  }
+
 };
 
 /**