toolcontext: reuse destroy_config_context

Call existing destroy_config_context() to destroy
some parts of cmd_context.

lib/commands/toolcontext.c

@@ -2041,25 +2041,17 @@ void destroy_toolcontext(struct cmd_context *cmd)
  _destroy_segtypes(&cmd->segtypes);
  _destroy_formats(cmd, &cmd->formats);
  _destroy_filters(cmd);
- if (cmd->mem)
- dm_pool_destroy(cmd->mem);
  devices_file_exit(cmd);
  dev_cache_exit();
  _destroy_dev_types(cmd);
  _destroy_tags(cmd);
 
  if ((cft_cmdline = remove_config_tree_by_source(cmd, CONFIG_STRING)))
  config_destroy(cft_cmdline);
- _destroy_config(cmd);
 
  if (cmd->cft_def_hash)
  dm_hash_destroy(cmd->cft_def_hash);
 
- if (cmd->libmem)
- dm_pool_destroy(cmd->libmem);
-
- if (cmd->pending_delete_mem)
- dm_pool_destroy(cmd->pending_delete_mem);
 #ifndef VALGRIND_POOL
  if (cmd->linebuffer) {
  /* Reset stream buffering to defaults */
@@ -2084,7 +2076,7 @@ void destroy_toolcontext(struct cmd_context *cmd)
  free(cmd->linebuffer);
  }
 #endif
- free(cmd);
+ destroy_config_context(cmd);
 
  lvmpolld_disconnect();