Tests: test_fstype: / is not always mounted in obs workers

It seems that only /proc is always mounted and testable in the
obs workers. So we removed the test for "/" so that the
builds don't fail anymore

src/findlib/unittests/fstype_test.c

@@ -42,7 +42,7 @@ void test_fstype(void **state) {
 #ifdef HAVE_WIN32
    char *fs_to_check[] = {"/", "c:/", NULL};
 #else
-   char *fs_to_check[] = {"/", "/proc", NULL};
+   char *fs_to_check[] = {"/proc", NULL};
 #endif
    char fs[1000];