chore: Remove community call announcement from README

The section detailing the first ADK community call scheduled for Oct 15, 2025, including date, time, meeting links, and agenda, has been removed.
The section detailing the first ADK community call scheduled for Oct 15, 2025, including date, time, meeting links, and agenda, has been removed.

PiperOrigin-RevId: 822843889

Author: hangfei

README.md

@@ -24,34 +24,6 @@
 
 Agent Development Kit (ADK) is a flexible and modular framework for developing and deploying AI agents. While optimized for Gemini and the Google ecosystem, ADK is model-agnostic, deployment-agnostic, and is built for compatibility with other frameworks. ADK was designed to make agent development feel more like software development, to make it easier for developers to create, deploy, and orchestrate agentic architectures that range from simple tasks to complex workflows.
 
-
----
-## 🔥 ADK's very first community call on Oct 15
-
-Join our ADK Community Call! Our first virtual community call is on Oct 15!
-Meet our team, and talk with us about our roadmap and how to contribute.
-
-First Call Details:
-
-Topic: ADK Roadmap
-
-Date: October 15, 2025
-
-Time: 9:30-10:30am PST
-
-Meeting link:
-[Join the call](http://meet.google.com/gjm-gfim-ctz)
-
-Add to your calendar
-[Event calendar invite](https://calendar.google.com/calendar/event?action=TEMPLATE&tmeid=MDUydWo1dHV1dHFtNzJuM3E0bmEyMW12ZnZfMjAyNTEwMTVUMTYzMDAwWiBjXzljNWVjODhhMmQyYWU5YjY5Mzk4ODU1MGZkNDA5MjVmYjgxYjM4MTI1NGNjYTgzNmRkMjMwNzRiMjNmYzcyZDVAZw&tmsrc=c_9c5ec88a2d2ae9b693988550fd40925fb81b381254cca836dd23074b23fc72d5%40group.calendar.google.com), [.ics file](https://calendar.google.com/calendar/ical/c_9c5ec88a2d2ae9b693988550fd40925fb81b381254cca836dd23074b23fc72d5%40group.calendar.google.com/public/basic.ics), [ADK community calendar](https://calendar.google.com/calendar/embed?src=c_9c5ec88a2d2ae9b693988550fd40925fb81b381254cca836dd23074b23fc72d5%40group.calendar.google.com&ctz=America%2FLos_Angeles), [ADK Community Call RSVP](https://google.qualtrics.com/jfe/form/SV_3K0RJZ64H1BexqS)
-
-Agenda:
-[Julia] ADK Roadmap
-[ Bo & Hangfei] Eng Deep Dive: Context Caching
-[Kris] How to Contribute
-
-[Shubham] Upcoming Events
-
 ---
 
 ## 🔥 What's new