Change libc-test time zone files relative path as input

Issue: I63KKE
Test: libc-test pass
Signed-off-by: Ndhy308 <tony.gan@huawei.com>

libc-test/src/functionalext/common/functionalext.h

@@ -23,7 +23,6 @@
 #include <string.h>
 #include "test.h"
 
-#define TIME_ZONE_SUB_TAG '/'
 #define EPS (0.00001)
 #define CMPFLAG 0
 #define ERREXPECT (-1)
@@ -130,4 +129,4 @@
         }                                                 \
     } while (0)
 
-#endif
+#endif
\ No newline at end of file

libc-test/src/functionalext/common/time_test_data.h

@@ -20,8 +20,6 @@
 #include <string.h>
 #include <time.h>
 
-#define TIME_ZONE_SUB_TAG '/'
-
 struct time_test_string_struct {
     const char *tz;
     const char *result;