remove unused file and import order

Author: alexander-alderman-webb

tests/integrations/mcp/streaming_asgi_transport.py

@@ -31,10 +31,10 @@ async def __call__(self, *args, **kwargs):
             return super(AsyncMock, self).__call__(*args, **kwargs)
 
 
-from mcp.types import GetPromptResult, PromptMessage, TextContent
-from mcp.server.lowlevel.helper_types import ReadResourceContents
 from mcp.server.lowlevel import Server
 from mcp.server.lowlevel.server import request_ctx
+from mcp.types import GetPromptResult, PromptMessage, TextContent
+from mcp.server.lowlevel.helper_types import ReadResourceContents
 
 try:
     from mcp.server.lowlevel.server import request_ctx