Remove Legacy Support

[Blind-Striker]

LocalStack version 2.2 has been released. Supporting Legacy containers is no longer meaningful. The following changes should be made:

• Port mappings should be removed from AwsServiceEndpointMetadata and only the Edge Port should be used from now on.
• The UseLegacyPorts property should be removed from ConfigOptions.
• Relevant unit, integration, and functional tests should be updated.