[types] move types into specific headers (#2946)

examples/drivers/windows/include/otLwfIoctl.h

@@ -35,8 +35,6 @@
 #ifndef __OTLWFIOCTL_H__
 #define __OTLWFIOCTL_H__
 
-#include <openthread/types.h>
-
 __inline LONG ThreadErrorToNtstatus(otError error) { return (LONG)-((int)error); }
 
 // User-mode IOCTL path for CreateFile

examples/drivers/windows/include/otNode.h

@@ -29,14 +29,12 @@
 /**
  * @file
  * @brief
- *  This file defines a node interface for openthread.h to be used for certification tests
+ *  This file defines a node interface for openthread to be used for certification tests
  */
 
 #ifndef OTNODE_H_
 #define OTNODE_H_
 
-#include <openthread/openthread.h>
-
 #ifndef OTNODEAPI
 #define OTNODEAPI __declspec(dllimport)
 #endif