Fix benchmarks

Author: xrmx

opentelemetry-sdk/benchmarks/trace/test_benchmark_trace.py

@@ -26,7 +26,7 @@
     sampling,
 )
 
-tracer = TracerProvider(
+tracer_provider = TracerProvider(
     sampler=sampling.DEFAULT_ON,
     resource=Resource(
         {
@@ -35,10 +35,11 @@
             "service.instance.id": "123ab456-a123-12ab-12ab-12340a1abc12",
         }
     ),
-).get_tracer("sdk_tracer_provider")
+)
+tracer = tracer_provider.get_tracer("sdk_tracer_provider")
 
 
-@pytest.fixture(params=[None, 0, 1, 10, 50])
+@pytest.fixture(params=[0, 1, 10, 50])
 def num_tracer_configurator_rules(request):
     return request.param
 
@@ -81,18 +82,13 @@ def tracer_configurator(tracer_scope):
             default_config=_TracerConfig(is_enabled=True),
         )(tracer_scope=tracer_scope)
 
-    tracer_provider = tracer._tracer_provider
     tracer_provider._set_tracer_configurator(
         tracer_configurator=tracer_configurator
     )
-    if num_tracer_configurator_rules is None:
-        tracer._tracer_provider = None
     benchmark(benchmark_start_span)
     tracer_provider._set_tracer_configurator(
         tracer_configurator=_default_tracer_configurator
     )
-    if num_tracer_configurator_rules is None:
-        tracer._tracer_provider = tracer_provider
 
 
 def test_simple_start_as_current_span(benchmark):