[utest] format code and remove duplicate header file

Author: mysterywolf

components/utilities/utest/utest.c

@@ -33,7 +33,7 @@
 #ifdef UTEST_THR_STACK_SIZE
 #define UTEST_THREAD_STACK_SIZE UTEST_THR_STACK_SIZE
 #else
-#define UTEST_THREAD_STACK_SIZE (4096)
+#define UTEST_THREAD_STACK_SIZE 4096
 #endif
 
 #ifdef UTEST_THR_PRIORITY

components/utilities/utest/utest.h

@@ -12,7 +12,6 @@
 #define __UTEST_H__
 
 #include <rtthread.h>
-#include <stdint.h>
 #include "utest_log.h"
 #include "utest_assert.h"