remove unused logging import from _propagator.py

Assisted-by: Claude Sonnet 4.6

Author: MikeGoldsmith

opentelemetry-sdk/src/opentelemetry/sdk/_configuration/_propagator.py

@@ -14,7 +14,6 @@
 
 from __future__ import annotations
 
-import logging
 from typing import Optional
 
 from opentelemetry.baggage.propagation import W3CBaggagePropagator
@@ -33,8 +32,6 @@
 )
 from opentelemetry.util._importlib_metadata import entry_points
 
-_logger = logging.getLogger(__name__)
-
 
 def _load_entry_point_propagator(name: str) -> TextMapPropagator:
     """Load a propagator by name from the opentelemetry_propagator entry point group."""