tools: Remove duplicate includes.

tools/widl/server.c

@@ -37,7 +37,6 @@
 #include "header.h"
 #include "windef.h"
 
-#include "widl.h"
 #include "typelib.h"
 #include "typelib_struct.h"
 #include "typegen.h"

tools/widl/typegen.c

@@ -40,7 +40,6 @@
 #include "windef.h"
 #include "wine/list.h"
 
-#include "widl.h"
 #include "typegen.h"
 
 static const func_t *current_func;

tools/widl/utils.c

@@ -27,7 +27,6 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
-#include <assert.h>
 #include <ctype.h>
 
 #include "widl.h"

tools/wrc/utils.c

@@ -26,7 +26,6 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
-#include <assert.h>
 #include <ctype.h>
 
 #include "wine/unicode.h"