refactor: clean up legacy comments and add OpenInference acknowledgment

Author: sipercai

instrumentation-genai/opentelemetry-instrumentation-langchain/README.md

@@ -118,6 +118,10 @@ opentelemetry-instrument <your_run_command>
 
 Contributions are welcome! Please feel free to submit a Pull Request.
 
+## Acknowledgments
+
+This instrumentation was inspired by and builds upon the excellent work done by the [OpenInference](https://github.com/Arize-ai/openinference) project. We acknowledge their contributions to the OpenTelemetry instrumentation ecosystem for AI/ML frameworks.
+
 ## License
 
 This project is licensed under the Apache License 2.0.

instrumentation-genai/opentelemetry-instrumentation-langchain/src/opentelemetry/instrumentation/langchain/__init__.py

@@ -43,7 +43,6 @@ class _BaseCallbackManagerInit:
     __slots__ = ("_tracer_instance",)
 
     def __init__(self, tracer: trace_api.Tracer, meter: Meter, cls: Type["LoongsuiteTracer"]):
-        # 直接创建实例，就像OpenInference一样
         self._tracer_instance = cls(tracer=tracer, meter=meter)
 
     def __call__(

instrumentation-genai/opentelemetry-instrumentation-langchain/tests/instrumentation/langchain/test_message_parsing.py

@@ -9,7 +9,6 @@
     ChatMessage
 )
 
-# 定义常量以替代aliyun.semconv.trace中的引用
 class MessageAttributes:
     MESSAGE_ROLE = "role"
     MESSAGE_CONTENT = "content"

instrumentation-genai/opentelemetry-instrumentation-langchain/tests/instrumentation/langchain/test_metadata.py

@@ -3,7 +3,6 @@
 from unittest.mock import Mock
 from opentelemetry.instrumentation.langchain.internal._tracer import _metadata
 
-# 定义常量以替代aliyun.semconv.trace中的引用
 LLM_SESSION_ID = "gen_ai.session.id"
 LLM_USER_ID = "gen_ai.user.id"
 METADATA = "metadata"

instrumentation-genai/opentelemetry-instrumentation-langchain/tests/instrumentation/langchain/test_prompts.py

@@ -1,7 +1,6 @@
 import pytest
 from opentelemetry.instrumentation.langchain.internal._tracer import _prompts
 
-# 定义常量以替代aliyun.semconv.trace中的引用
 class SpanAttributes:
     GEN_AI_PROMPT = "gen_ai.prompt"
     CONTENT = "content"

instrumentation-genai/opentelemetry-instrumentation-langchain/tests/instrumentation/langchain/test_token_counts.py

@@ -5,7 +5,6 @@
 from langchain_core.outputs import Generation, ChatGeneration
 from langchain_core.messages import AIMessage
 
-# Define constants to replace the aliyun version
 LLM_USAGE_PROMPT_TOKENS = "gen_ai.usage.prompt_tokens"
 LLM_USAGE_COMPLETION_TOKENS = "gen_ai.usage.completion_tokens"
 LLM_USAGE_TOTAL_TOKENS = "gen_ai.usage.total_tokens"