Remove unused import

Author: RossTarrant

pkg/http/server.go

@@ -13,7 +13,6 @@ import (
 
 	ghcontext "github.com/github/github-mcp-server/pkg/context"
 	"github.com/github/github-mcp-server/pkg/github"
-	"github.com/github/github-mcp-server/pkg/http/middleware"
 	"github.com/github/github-mcp-server/pkg/http/oauth"
 	"github.com/github/github-mcp-server/pkg/inventory"
 	"github.com/github/github-mcp-server/pkg/lockdown"