The global variables __page_size and __page_shift are declared in
vm_util.c, but they are never used anywhere in the codebase. This
patch removes them to clean up the source and eliminate dead code.

Signed-off-by: Zhang Chujun <zhangchujun@cmss.chinamobile.com>

diff --git a/tools/testing/selftests/mm/vm_util.c b/tools/testing/selftests/mm/vm_util.c
index 3869e68bb8b5..3983c368edd2 100644
--- a/tools/testing/selftests/mm/vm_util.c
+++ b/tools/testing/selftests/mm/vm_util.c
@@ -17,9 +17,6 @@
 #define STATUS_FILE_PATH "/proc/self/status"
 #define MAX_LINE_LENGTH 500
 
-unsigned int __page_size;
-unsigned int __page_shift;
-
 uint64_t pagemap_get_entry(int fd, char *start)
 {
 	const unsigned long pfn = (unsigned long)start / getpagesize();
-- 
2.50.1.windows.1