Why not using gh-ost to delete old/specific data

[AdhamMGaber9]

To avoid deadlocks, be able to deal with big size table and be able to check deleted data before removal, I came to use gh-ost for this case added supporting a WHERE condition that allows only moving/copying the data that meets the condition to the new table

[AdhamMGaber9]

here is my PR for this: #1621