write_prometheus plugin: Simplify files included by the test.

diff --git a/src/write_prometheus_test.c b/src/write_prometheus_test.c
index 40c7de1ad5c0a11bdf47103b8fd48d1257a923f9..0b41032387f5fb894ac5e094fb7d318ea93ab421 100644 (file)
--- a/src/write_prometheus_test.c
+++ b/src/write_prometheus_test.c
@@ -24,11 +24,10 @@
  *   Florian octo Forster <octo at collectd.org>
  */
 
-#include "collectd.h"
-#include "testing.h"
-
 #include "write_prometheus.c" /* sic */
 
+#include "testing.h"
+
 DEF_TEST(format_label_name) {
   // Test cases are based on:
   // https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/pkg/translator/prometheus/README.md