chore: clean .gitignore cache

backend/internal/api/handlers/ssrf_test_helpers_test.go

@@ -1,24 +0,0 @@
-package handlers
-
-import (
-	"net/url"
-	"strconv"
-	"testing"
-)
-
-func expectedPortFromURL(t *testing.T, raw string) int {
-	t.Helper()
-	u, err := url.Parse(raw)
-	if err != nil {
-		t.Fatalf("failed to parse url %q: %v", raw, err)
-	}
-	p := u.Port()
-	if p == "" {
-		t.Fatalf("expected explicit port in url %q", raw)
-	}
-	port, err := strconv.Atoi(p)
-	if err != nil {
-		t.Fatalf("failed to parse port %q from url %q: %v", p, raw, err)
-	}
-	return port
-}