Remove transition warning from README

Author: dempseyatgithub

README.md

@@ -6,11 +6,6 @@ The `swift-evolution-metadata-extractor` tool reads the main branch of the `swif
 
 In addition to the extraction tool, this package vends the `EvolutionMetadataModel` library which provides types for encoding and decoding evolution metadata JSON files. This library is intended for use by clients of the metadata file that drives the evolution dashboard. 
 
-> [!WARNING] 
-> The schema of the metadata generated by this tool is in the midst of a transition, detailed in this thread in the Swift forums: [Swift Evolution Metadata Transition](https://forums.swift.org/t/swift-evolution-metadata-transition/71387).
-> 
-> Until the transition period ends in late July 2024, the generated `evolution.json` file and `EvolutionMetadataModel` types will contain properties that will be removed at the end of the transition. Please see the Swift forum thread for full details.
-
 ## Usage
 
 `swift-evolution-metadata-extractor`