t/helper: stop re-initialization of `the_repository`

While "common-main.c" already initializes `the_repository` for us, we do
so a second time in the "read-cache" test helper. This causes a memory
leak because the old repository's contents isn't released.

Stop calling `initialize_repository()` to plug this leak.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/helper/test-read-cache.c

@@ -11,8 +11,6 @@ int cmd__read_cache(int argc, const char **argv)
 	int i, cnt = 1;
 	const char *name = NULL;
 
-	initialize_repository(the_repository);
-
 	if (argc > 1 && skip_prefix(argv[1], "--print-and-refresh=", &name)) {
 		argc--;
 		argv++;

t/t7519-status-fsmonitor.sh

@@ -2,6 +2,7 @@
 
 test_description='git status with file system watcher'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # Note, after "git reset --hard HEAD" no extensions exist other than 'TREE'