Remove yaml import from incomfort integration after deprecation time

[jbouwh]

Breaking change

YAML support for the incomfort integration was removed after 6 months of deprecation. The yaml configfuration was migrated to the UI automatically and users were instructed to remove the imported configuration from configuration.yaml.

Proposed change

Remove yaml import from incomfort integration after deprecation time

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

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• This PR fixes or closes issue: fixes #
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[epenet]

I think you need to adjust CONFIG_SCHEMA constant

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[jbouwh]

CONFIG_SCHEMA

I think you need to adjust CONFIG_SCHEMA constant

Why is this needed, there is no async_setup method any more, so it should not depend on CONFIG_SCHEMA imo.
Shoot, it should be cleaned up.

[epenet]

LGTM 👍