remove superfluous import

Signed-off-by: Johannes Feichtner <[email protected]>

Author: Churro

cyclonedx/model/contact.py

@@ -23,7 +23,6 @@
 
 from .._internal.bom_ref import bom_ref_from_str as _bom_ref_from_str
 from .._internal.compare import ComparableTuple as _ComparableTuple
-from ..exception.model import NoPropertiesProvidedException
 from ..schema.schema import SchemaVersion1Dot6
 from . import XsUri
 from .bom_ref import BomRef