wip: otel

Author: overtrue

tests/Support/MeasureTest.php

@@ -8,8 +8,6 @@
 use OpenTelemetry\API\Trace\SpanInterface;
 use OpenTelemetry\API\Trace\TracerInterface;
 use OpenTelemetry\Context\Context;
-use OpenTelemetry\Context\ContextKeys;
-use OpenTelemetry\Context\Propagation\TextMapPropagatorInterface;
 use OpenTelemetry\Context\ScopeInterface;
 use OpenTelemetry\SDK\Trace\RandomIdGenerator;
 use OpenTelemetry\SDK\Trace\Span;