docs: remove agent style row from README table

Author: mwbrooks

README.md

@@ -11,7 +11,6 @@ This repo contains the same app built with two different AI agent frameworks. Pi
 | | [Pydantic AI](./pydantic-ai/) | [OpenAI Agents SDK](./openai-agents-sdk/) |
 |---|---|---|
 | **Framework** | [pydantic-ai](https://ai.pydantic.dev/) | [openai-agents](https://openai.github.io/openai-agents-python/) |
-| **Agent style** | Declarative with dependency injection | Runner-based with decorated tools |
 | **Get started** | [View README](./pydantic-ai/README.md) | [View README](./openai-agents-sdk/README.md) |
 
 Both implementations share the same Slack listener layer, the same five simulated IT tools, and the same user experience. The only difference is how the agent is defined and executed under the hood.