Remove unused ATTR_STEP_VALIDATION from number (home-assistant#152179)

Author: arturpragacz

homeassistant/components/number/__init__.py

@@ -35,7 +35,6 @@
     ATTR_MAX,
     ATTR_MIN,
     ATTR_STEP,
-    ATTR_STEP_VALIDATION,
     ATTR_VALUE,
     DEFAULT_MAX_VALUE,
     DEFAULT_MIN_VALUE,
@@ -184,7 +183,7 @@ class NumberEntity(Entity, cached_properties=CACHED_PROPERTIES_WITH_ATTR_):
     """Representation of a Number entity."""
 
     _entity_component_unrecorded_attributes = frozenset(
-        {ATTR_MIN, ATTR_MAX, ATTR_STEP, ATTR_STEP_VALIDATION, ATTR_MODE}
+        {ATTR_MIN, ATTR_MAX, ATTR_STEP, ATTR_MODE}
     )
 
     entity_description: NumberEntityDescription

homeassistant/components/number/const.py

@@ -57,7 +57,6 @@
 ATTR_MIN = "min"
 ATTR_MAX = "max"
 ATTR_STEP = "step"
-ATTR_STEP_VALIDATION = "step_validation"
 
 DEFAULT_MIN_VALUE = 0.0
 DEFAULT_MAX_VALUE = 100.0