OID-1640 | Use body for delete action

[dzemlianoi-double]

This PR adds native support for sending a JSON body with HTTP DELETE requests in the remote_resource gem and removes all related monkey patches and workarounds from downstream apps.

What’s changed
remote_resource gem:

• RemoteResource::Request#body now serializes attributes as JSON for DELETE requests when attributes are present.
• Both class-level and instance-level #destroy in PersistenceMethods now accept attributes as the DELETE body.
• All specs updated and expanded to cover new signatures and behaviors.
• Removed POST-to-:destroy workarounds; now using the gem’s native DELETE with body.

Why

• Some APIs require a body with DELETE requests, which was not supported natively.
• This change standardizes and simplifies DELETE-with-body support across all apps using remote_resource.
• Removes technical debt and improves maintainability.

Backward compatibility

• All existing destroy usages remain fully backward compatible.
• Only calls that intentionally pass attributes as the first argument will send a JSON body with DELETE.