Fixup

Author: santigimeno

agents/otlp/src/otlp_common.h

@@ -68,7 +68,7 @@ class MetricDataBatch {
     MetricVector metrics = std::move(metrics_);
     Reset();
     return metrics;
-  };
+  }
 
   void IncrementPoints(std::size_t count = 1) {
     total_points_ += count;