Revert "Issue bot - use FNSR"

This reverts commit d83934e.

Author: ondrejmirtes

issue-bot/src/Console/RunCommand.php

@@ -20,7 +20,6 @@
 use function implode;
 use function is_file;
 use function microtime;
-use function putenv;
 use function serialize;
 use function sha1;
 use function sprintf;
@@ -112,7 +111,6 @@ private function analyseHash(OutputInterface $output, int $phpVersion, Playgroun
 		$output->writeln(sprintf('Starting analysis of %s', $hash));
 
 		$startTime = microtime(true);
-		putenv('PHPSTAN_FNSR=1');
 		exec(implode(' ', $commandArray), $outputLines, $exitCode);
 		$elapsedTime = microtime(true) - $startTime;
 		$output->writeln(sprintf('Analysis of %s took %.2f s', $hash, $elapsedTime));