Some time importing a manged solution in MS CRM you will face this problem, it happens because circular ref.
Error: This solution cannot be uninstalled because the ‘LocalizedLabel’ with id ‘XXXX(Form)’ is required by the ‘*******’ solution. Uninstall the XXXXX solution and try again
To resolve this problem you need to remove that ref from database, here is the query for that
delete from [DATABASE_MSCRM].[MetadataSchema].[LocalizedLabel] where LocalizedLabelId = ‘YOUR ID’
delete from [MetadataSchema].[LocalizedLabel] where LocalizedLabelId = ‘bc2e6205-7e39-e411-8d95-0050569303a1’