Remove unneeded macros, labels, and call to pthread_textcancel()

src/xpdev/xpevent.c

@@ -38,12 +38,6 @@
 #include <stdio.h>		/* NULL */
 #include "xpevent.h"
 
-#define _EVENT_CHECK_VALIDITY(event)		\
-	if (event==NULL || (event->magic != EVENT_MAGIC)) {	\
-		errno = EINVAL;			\
-		return(FALSE);			\
-	}
-
 xpevent_t
 CreateEvent(void *sec, BOOL bManualReset, BOOL bInitialState, void *name)
 {
@@ -198,8 +192,5 @@ WaitEvent(xpevent_t event, DWORD ms)
 
 	pthread_mutex_unlock(&event->lock);
 
-  RETURN:
-
-	pthread_testcancel();
 	return retval;
 }