udisksstate: Remove udisks_state_check_sync()

Unused nowadays, replaced by explicit cleanup by block device number
and mutexes for cross-thread calls.

doc/udisks2-sections.txt.daemon.sections.in

@@ -237,7 +237,6 @@ udisks_state_new
 udisks_state_start_cleanup
 udisks_state_stop_cleanup
 udisks_state_check
-udisks_state_check_sync
 udisks_state_check_block
 udisks_state_get_daemon
 <SUBSECTION>

src/udisksstate.c

@@ -425,64 +425,6 @@ udisks_state_check (UDisksState *state)
                          state);
 }
 
-
-typedef struct
-{
-  UDisksState *state;
-  gboolean     finished;
-  GCond        cond;
-  GMutex       data_mutex;
-} UDisksStateCheckSyncData;
-
-static gboolean
-udisks_state_check_sync_func (UDisksStateCheckSyncData *data)
-{
-  udisks_state_check_in_thread (data->state);
-
-  /* signal the calling thread the cleanup has finished */
-  g_mutex_lock (&data->data_mutex);
-  data->finished = TRUE;
-  g_cond_signal (&data->cond);
-  g_mutex_unlock (&data->data_mutex);
-
-  return FALSE;
-}
-
-/**
- * udisks_state_check_sync:
- * @state: A #UDisksState.
- *
- * Causes the clean-up thread for @state to check if anything should be cleaned up and perform the cleanup.
- *
- * This can be called from any thread and in contrast to udisks_state_check() will block the calling thread until cleanup is finished.
- */
-void
-udisks_state_check_sync (UDisksState *state)
-{
-  UDisksStateCheckSyncData data = {0, };
-
-  g_return_if_fail (UDISKS_IS_STATE (state));
-  g_return_if_fail (state->thread != NULL);
-
-  g_cond_init (&data.cond);
-  g_mutex_init (&data.data_mutex);
-  data.state = state;
-  data.finished = FALSE;
-
-  g_mutex_lock (&data.data_mutex);
-  g_main_context_invoke (state->context,
-                         (GSourceFunc) udisks_state_check_sync_func,
-                         &data);
-
-  /* wait for the mainloop running in the cleanup thread to process our injected task */
-  while (!data.finished)
-    g_cond_wait (&data.cond, &data.data_mutex);
-  g_mutex_unlock (&data.data_mutex);
-
-  g_cond_clear (&data.cond);
-  g_mutex_clear (&data.data_mutex);
-}
-
 /**
  * udisks_state_check_block:
  * @state: A #UDisksState.

src/udisksstate.h

@@ -35,7 +35,6 @@ UDisksDaemon  *udisks_state_get_daemon           (UDisksState   *state);
 void           udisks_state_start_cleanup        (UDisksState   *state);
 void           udisks_state_stop_cleanup         (UDisksState   *state);
 void           udisks_state_check                (UDisksState   *state);
-void           udisks_state_check_sync           (UDisksState   *state);
 void           udisks_state_check_block          (UDisksState   *state,
                                                   dev_t          block_device);
 /* mounted-fs */