Revert "Fix type annotation in lambda instrumentation"

This reverts commit c1de289.

Author: jbfenton

instrumentation/opentelemetry-instrumentation-aws-lambda/src/opentelemetry/instrumentation/aws_lambda/__init__.py

@@ -353,8 +353,8 @@ def _instrument(
     wrapped_function_name,
     flush_timeout,
     event_context_extractor: Callable[[Any], Context],
-    tracer_provider: TracerProvider | None = None,
-    meter_provider: MeterProvider | None = None,
+    tracer_provider: TracerProvider = None,
+    meter_provider: MeterProvider = None,
 ):
     # pylint: disable=too-many-locals
     # pylint: disable=too-many-statements