End usage of FilterProperty, as per RFC-730.

python/lsst/obs/base/formatters/filter.py

@@ -138,17 +138,4 @@ def _toBytes(self, inMemoryDataset: Any) -> bytes:
         filter["name"] = inMemoryDataset.getName()
         filter["aliases"] = inMemoryDataset.getAliases()
 
-        # This can fail if the filter is no longer available in the
-        # Singleton
-        try:
-            filterProperty = inMemoryDataset.getFilterProperty()
-        except LookupError:
-            pass
-        else:
-            properties = {}
-            properties["lambdaEff"] = filterProperty.getLambdaEff()
-            properties["lambdaMax"] = filterProperty.getLambdaMax()
-            properties["lambdaMin"] = filterProperty.getLambdaMin()
-            filter["properties"] = properties
-
         return yaml.dump(filter).encode()

tests/test_filters.py

@@ -37,26 +37,16 @@ def setUp(self):
 
     def test_singleton(self):
         self.filters1.defineFilters()
-        self.assertEqual(lsst.afw.image.Filter('abc').getFilterProperty().getLambdaEff(), 123)
-        self.assertEqual(lsst.afw.image.Filter('def').getFilterProperty().getLambdaEff(), 456)
-        self.filters1.defineFilters()  # this should not change anything
-        self.assertEqual(lsst.afw.image.Filter('abc').getFilterProperty().getLambdaEff(), 123)
-        self.assertEqual(lsst.afw.image.Filter('def').getFilterProperty().getLambdaEff(), 456)
         with self.assertRaises(RuntimeError):
             self.filters2.defineFilters()
-        # the defined filters should be unchanged
-        self.assertEqual(lsst.afw.image.Filter('abc').getFilterProperty().getLambdaEff(), 123)
-        self.assertEqual(lsst.afw.image.Filter('def').getFilterProperty().getLambdaEff(), 456)
 
     def test_reset(self):
         self.filters1.defineFilters()
         with self.assertRaises(RuntimeError):
             self.filters2.defineFilters()
         self.filters1.reset()
-        # The new filters can be defiend and should replace the old ones.
+        # The new filters can be defined and should replace the old ones.
         self.filters2.defineFilters()
-        self.assertEqual(lsst.afw.image.Filter('abc').getFilterProperty().getLambdaEff(), 321)
-        self.assertEqual(lsst.afw.image.Filter('def').getFilterProperty().getLambdaEff(), 654)
 
 
 class TestFilterDefinition(lsst.utils.tests.TestCase):