Remove unused use statement

Author: greeflas

src/Bridge/GlobalSpanHandler.php

@@ -10,7 +10,6 @@
 use Jaeger\Symfony\Tag\SymfonyComponentTag;
 use Jaeger\Symfony\Tag\SymfonyVersionTag;
 use Jaeger\Tag\SpanKindServerTag;
-use Jaeger\Thrift\Tag;
 use Jaeger\Tracer\TracerInterface;
 use Symfony\Component\HttpFoundation\Request;