Fix IWYU warnings

Author: psx95

sdk/include/opentelemetry/sdk/trace/tracer_config.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include <functional>
 #include "opentelemetry/sdk/instrumentationscope/instrumentation_scope.h"
 #include "opentelemetry/version.h"
 

sdk/src/trace/tracer_config.cc

@@ -2,7 +2,6 @@
 // SPDX-License-Identifier: Apache-2.0
 
 #include "opentelemetry/sdk/trace/tracer_config.h"
-#include <memory>
 #include "opentelemetry/sdk/instrumentationscope/instrumentation_scope.h"
 
 OPENTELEMETRY_BEGIN_NAMESPACE

sdk/src/trace/tracer_context_factory.cc

@@ -11,6 +11,7 @@
 #include "opentelemetry/sdk/trace/random_id_generator_factory.h"
 #include "opentelemetry/sdk/trace/sampler.h"
 #include "opentelemetry/sdk/trace/samplers/always_on_factory.h"
+#include "opentelemetry/sdk/trace/tracer_config.h"
 #include "opentelemetry/sdk/trace/tracer_context.h"
 #include "opentelemetry/sdk/trace/tracer_context_factory.h"
 #include "opentelemetry/version.h"

sdk/src/trace/tracer_provider.cc

@@ -3,6 +3,7 @@
 
 #include <algorithm>
 #include <chrono>
+#include <functional>
 #include <mutex>
 #include <utility>
 #include <vector>

sdk/src/trace/tracer_provider_factory.cc

@@ -11,6 +11,7 @@
 #include "opentelemetry/sdk/trace/random_id_generator_factory.h"
 #include "opentelemetry/sdk/trace/sampler.h"
 #include "opentelemetry/sdk/trace/samplers/always_on_factory.h"
+#include "opentelemetry/sdk/trace/tracer_config.h"
 #include "opentelemetry/sdk/trace/tracer_context.h"
 #include "opentelemetry/sdk/trace/tracer_provider.h"
 #include "opentelemetry/sdk/trace/tracer_provider_factory.h"