Remove expectation of having the mysql data in the snapshot

Author: omgitsads

share/github-backup-utils/ghe-restore-mysql

@@ -31,7 +31,7 @@ snapshot_dir="$GHE_DATA_DIR/$GHE_RESTORE_SNAPSHOT"
 # When customer uses external database, we rely on customer to implement the restore process
 if is_service_external 'mysql' "$snapshot_dir/settings.json"; then
   echo "Restore external MySQL database using customer-provided script ..."
-  cat $snapshot_dir/mysql.sql.gz | $EXTERNAL_DATABASE_RESTORE_SCRIPT
+  $EXTERNAL_DATABASE_RESTORE_SCRIPT
 else
   ssh_config_file_opt=
   if is_binary_backup_feature_on; then