Remove stale 'New' badge from Dynamic MCP page

The sidebar badge using time-relative "New" text goes stale silently.
The experimental status is already communicated through the content.

Closes #24265

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: dvdksn

content/manuals/ai/mcp-catalog-and-toolkit/dynamic-mcp.md

@@ -4,11 +4,6 @@ linkTitle: Dynamic discovery
 description: Discover and add MCP servers on-demand using natural language with Dynamic MCP servers
 keywords: dynamic mcps, mcp discovery, mcp-find, mcp-add, code-mode, ai agents, model context protocol
 weight: 40
-params:
-  sidebar:
-    badge:
-      color: green
-      text: New
 ---
 
 Dynamic MCP enables AI agents to discover and add MCP servers on-demand during