INI: remove unused helpers

Btw, `sss_ini_get_mtime()` could access uninitialized 'self->cstat'

src/tests/cmocka/test_config_check.c

@@ -35,7 +35,6 @@ struct sss_ini {
     struct ref_array *ra_error_list;
     struct ini_cfgobj *sssd_config;
     struct value_obj *obj;
-    const struct stat *cstat;
     struct ini_cfgfile *file;
     bool main_config_exists;
 };

src/util/sss_ini.c

@@ -43,7 +43,6 @@ struct sss_ini {
     struct ref_array *ra_error_list;
     struct ini_cfgobj *sssd_config;
     struct value_obj *obj;
-    const struct stat *cstat;
     struct ini_cfgfile *file;
     bool main_config_exists;
 };
@@ -192,29 +191,6 @@ static int sss_ini_access_check(struct sss_ini *self)
 
 
 
-/* Get cstat */
-
-int sss_ini_get_stat(struct sss_ini *self)
-{
-    self->cstat = ini_config_get_stat(self->file);
-
-    if (!self->cstat) return EIO;
-
-    return EOK;
-}
-
-
-
-/* Get mtime */
-
-int sss_ini_get_mtime(struct sss_ini *self,
-                      size_t timestr_len,
-                      char *timestr)
-{
-    return snprintf(timestr, timestr_len, "%llu",
-                    (long long unsigned)self->cstat->st_mtime);
-}
-
 /* Get file_exists */
 
 bool sss_ini_exists(struct sss_ini *self)

src/util/sss_ini.h

@@ -92,18 +92,6 @@ int sss_ini_open(struct sss_ini *self,
  */
 bool sss_ini_exists(struct sss_ini *self);
 
-/**
- * @brief get Cstat structure of the ini file
- */
-int sss_ini_get_stat(struct sss_ini *self);
-
-/**
- * @brief Get mtime of the ini file
- */
-int sss_ini_get_mtime(struct sss_ini *self,
-                      size_t timestr_len,
-                      char *timestr);
-
 /**
  * @brief Get pointer to list of snippet parsing errors
  */