Removed use of Stringable in production code

Author: SergeyKleyman

agent/php/ElasticApm/Impl/Util/UrlParts.php

@@ -25,14 +25,13 @@
 
 use Elastic\Apm\Impl\Log\LoggableInterface;
 use Elastic\Apm\Impl\Log\LoggableTrait;
-use Stringable;
 
 /**
  * Code in this file is part of implementation internals and thus it is not covered by the backward compatibility.
  *
  * @internal
  */
-final class UrlParts implements LoggableInterface, Stringable
+final class UrlParts implements LoggableInterface
 {
     use LoggableTrait;
 

agent/php/ElasticApm/Impl/Util/WildcardListMatcher.php

@@ -23,14 +23,12 @@
 
 namespace Elastic\Apm\Impl\Util;
 
-use Stringable;
-
 /**
  * Code in this file is part of implementation internals and thus it is not covered by the backward compatibility.
  *
  * @internal
  */
-final class WildcardListMatcher implements Stringable
+final class WildcardListMatcher
 {
     /** @var WildcardMatcher[] */
     private $matchers;

agent/php/ElasticApm/Impl/Util/WildcardMatcher.php

@@ -23,14 +23,12 @@
 
 namespace Elastic\Apm\Impl\Util;
 
-use Stringable;
-
 /**
  * Code in this file is part of implementation internals and thus it is not covered by the backward compatibility.
  *
  * @internal
  */
-final class WildcardMatcher implements Stringable
+final class WildcardMatcher
 {
     private const CASE_SENSITIVE_PREFIX = '(?-i)';
     private const WILDCARD = '*';

tests/ElasticApmTests/ComponentTests/ConfigSettingTest.php

@@ -46,7 +46,6 @@
 use ElasticApmTests\Util\MixedMap;
 use ElasticApmTests\Util\TextUtilForTests;
 use ElasticApmTests\Util\TransactionExpectations;
-use Stringable;
 
 /**
  * @group smoke
@@ -297,8 +296,7 @@ private static function adaptParsedValueToCompare($optParsedValue)
         }
 
         if (is_object($optParsedValue)) {
-            self::assertInstanceOf(Stringable::class, $optParsedValue);
-            return strval($optParsedValue);
+            return TextUtilForTests::valuetoString($optParsedValue);
         }
 
         self::fail('Unexpected $optParsedValue type: ' . DbgUtil::getType($optParsedValue));