Fix import sorting and remove unused imports

Author: bhosmer-ant

tests/server/test_lowlevel_tool_annotations.py

@@ -10,17 +10,12 @@
 from mcp.server.session import ServerSession
 from mcp.shared.session import RequestResponder
 from mcp.types import (
-    Tool,
-    ToolAnnotations,
-    JSONRPCMessage,
-    ListToolsRequest,
-    ListToolsResult,
-    InitializeRequestParams,
-    Implementation,
-    ClientCapabilities,
-    ServerRequest,
     ClientResult,
+    JSONRPCMessage,
     ServerNotification,
+    ServerRequest,
+    Tool,
+    ToolAnnotations,
 )