Don't display Azure requirement error if other services are used as default

I had some trouble with MR workflow, so here's the patch removing all requirement error code.

This patch removes all requirement error code.

Removing all requirement code can not be the solution.

No matter which provider is used, configuration is needed.

As this module initially had only one service provider (Azure) and was later extended to support Alttext.AI I would rather go with updating requirement message to something more generic because message about missing Azure configuration is now a bit misleading. Also not sure if module gracefully handles missing provider configuration. But to me more sense is to inform site developer that this module needs config to be set than to allow enabling module without proper config.

Kept messages and made them more general.

@dipakmdhrm: The submodule auto_alter_translate has no alternative provider. No need to remove any hook at all.
@dipakmdhrm: The reason why you received the error message was that no URL is defiend for Alttext.ai. Fixed that in code.

@miksha: Totally agree

New version available.

Automatically closed - issue fixed for 2 weeks with no activity.