Revert "MT#55881 Provide split_autoprov_firmware_data procedure for upgrades"

This reverts commit 1631573453.

The script is actually a one-time only script, no need to re-execute
it again, instead it fails to run due to:

| Applying revision script /usr/share/ngcp-db-schema/db_scripts/diff/15743.up: ERROR 1050 (42S01) at line 4: Table 'autoprov_firmwares_data' already exists
| failed. :(

Change-Id: I75ea1a0ce86064113032844a9ff4fc8a2b0af7cd

db_scripts/diff/15743.up

@@ -1,58 +0,0 @@
-USE provisioning;
-SET autocommit=0;
-
-CREATE TABLE `autoprov_firmwares_data` (
-  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
-  fw_id int(11) unsigned NOT NULL,
-  `data` longblob NOT NULL,
-  PRIMARY KEY (`id`),
-  KEY `afd_fw_id_idx` (`fw_id`),
-  CONSTRAINT `fk_fw_idx` FOREIGN KEY (`fw_id`) REFERENCES `autoprov_firmwares` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
-) ENGINE=InnoDB;
-
-DROP PROCEDURE split_autoprov_firmware_data;
-DELIMITER ;;
-CREATE PROCEDURE split_autoprov_firmware_data()
-BEGIN
-
-    DECLARE n_fw_id, chunk_size, off_set int;
-    DECLARE chunk longblob;
-    DECLARE done int DEFAULT FALSE;
-
-    DECLARE x CURSOR FOR SELECT id FROM autoprov_firmwares ORDER BY id ASC;
-    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
-
-    SET chunk_size = 10485760;
-    SET off_set = 1;
-
-    OPEN x;
-    x_main: LOOP
-        FETCH x INTO n_fw_id;
-        IF done THEN
-            LEAVE x_main;
-        END IF;
-        SET off_set = 1;
-        x_chunk: LOOP
-            SELECT substr(data, off_set, chunk_size) INTO chunk
-              FROM autoprov_firmwares
-             WHERE id = n_fw_id;
-            IF LENGTH(chunk) > 0 THEN
-                INSERT INTO autoprov_firmwares_data (fw_id, data)
-                    VALUES (n_fw_id, chunk);
-                SET off_set = off_set+chunk_size;
-            ELSE
-                LEAVE x_chunk;
-            END IF;
-        END LOOP;
-    END LOOP;
-    CLOSE x;
-
-END;;
-DELIMITER ;
-
-CALL split_autoprov_firmware_data;
-DROP PROCEDURE split_autoprov_firmware_data;
-
-ALTER TABLE autoprov_firmwares DROP data;
-
-COMMIT;