Avoid BC in Adapter and RegistryInterface for sorting metrics (#118)

Signed-off-by: Javier Espinosa <javespalf@gmail.com>
Signed-off-by: Javier Espinosa <javierespinosa@spotahome.com>

Author: javespi

src/Prometheus/RegistryInterface.php

@@ -17,7 +17,7 @@ public function wipeStorage(): void;
     /**
      * @return MetricFamilySamples[]
      */
-    public function getMetricFamilySamples(bool $sortMetrics = true): array;
+    public function getMetricFamilySamples(): array;
 
     /**
      * @param string   $namespace e.g. cms

src/Prometheus/Storage/Adapter.php

@@ -16,7 +16,7 @@ interface Adapter
     /**
      * @return MetricFamilySamples[]
      */
-    public function collect(bool $sortMetrics = true): array;
+    public function collect(): array;
 
     /**
      * @param mixed[] $data