Remove no-disruption RSVP reassurance

Delete the line that stated existing RSVPs and members are not affected during the switch from Meetup.com to the Global AI platform in chapter-leads-meeting/july-2026.md. This tightens messaging about the migration and removes an explicit assurance that may have been inaccurate or premature.

Author: codewithsimon

chapter-leads-meeting/july-2026.md

@@ -31,7 +31,6 @@ The community keeps growing across every channel.
 We're consolidating chapter tools into the new Global AI platform, and Meetup.com will no longer be part of that toolkit.
 
 - **What's Changing**: Chapter events move fully to the new Global AI platform, and Meetup.com groups will be phased out.
-- **No Disruption**: Existing RSVPs and members are not affected during the switch.
 - **Deadline**: **July 20, 2026** is the last day to claim and keep your `city_name@globalai.community` email address. Chapter leads should act before this date to avoid losing their chapter email.
 
 ## 4. Introducing the New Global AI Platform