Use mock_platform for event entity component tests instead of hass.components (#113667)

tests/testing_config/custom_components/test/event.py

@@ -1,43 +0,0 @@
-"""Provide a mock event platform.
-
-Call init before using it in your tests to ensure clean test data.
-"""
-
-from homeassistant.components.event import EventEntity
-
-from tests.common import MockEntity
-
-ENTITIES = []
-
-
-class MockEventEntity(MockEntity, EventEntity):
-    """Mock EventEntity class."""
-
-    @property
-    def event_types(self) -> list[str]:
-        """Return a list of possible events."""
-        return self._handle("event_types")
-
-
-def init(empty=False):
-    """Initialize the platform with entities."""
-    global ENTITIES
-
-    ENTITIES = (
-        []
-        if empty
-        else [
-            MockEventEntity(
-                name="doorbell",
-                unique_id="unique_doorbell",
-                event_types=["short_press", "long_press"],
-            ),
-        ]
-    )
-
-
-async def async_setup_platform(
-    hass, config, async_add_entities_callback, discovery_info=None
-):
-    """Return mock entities."""
-    async_add_entities_callback(ENTITIES)