fix: Remove logging initialization from MCPServer.__init__

[SimonZehetner]

Motivation and Context

Fixes #1656

How Has This Been Tested?

Breaking Changes

Removed mcp.server.mcpserver.utilities.logging.configure_logging

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Documentation
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context

I removed mcp.server.mcpserver.utilities.logging.configure_logging, as this was the only usage.
I also checked the examples, and most of them had logging.basicConfig in them or no logging at all.

I was uncertain about moving the call to configure_logging to MCPServer.run_sse_async or MCPServer.run_streamable_http_async because they set up uvicorn with logging. However, I ultimately decided against it.