Re-enabled serial port detection on Windows

Fixes #1573

Author: cmaglie

app/src/processing/app/windows/Platform.java

@@ -334,8 +334,6 @@ public String resolveDeviceAttachedTo(String serial, Map<String, TargetPackage>
     }
   }
 
-  /*
-  Temporarly disabled due to https://github.com/arduino/Arduino/issues/1573
   @Override
   public String preListAllCandidateDevices() {
     ByteArrayOutputStream baos = new ByteArrayOutputStream();
@@ -351,5 +349,4 @@ public String preListAllCandidateDevices() {
       return super.preListAllCandidateDevices();
     }
   }
-  */
 }