docs: Fix ESLint errors in advanced-cicd.mdx

Remove unused Tabs and TabItem imports that were causing lint failures

Author: JAORMX

docs/toolhive/guides-cli/advanced-cicd.mdx

@@ -3,9 +3,6 @@ title: Advanced CI/CD with ToolHive
 description: Advanced CI/CD patterns for building and deploying MCP server containers with ToolHive.
 ---
 
-import Tabs from '@theme/Tabs';
-import TabItem from '@theme/TabItem';
-
 This guide covers advanced CI/CD patterns for production environments using ToolHive's [`thv build`](../reference/cli/thv_build.md) command. These patterns include multi-architecture builds, supply chain security, and efficient change detection.
 
 ## Prerequisites