message: fix(types): Remove redundant implementee
  The `Span` interface extends the `SpanContext` interface, so anything in the latter is definitely in the former. Therefore, implementing the "superset" interface is sufficient.
diff: @@ -37,7 +37,7 @@ export class SpanRecorder {
  /**
  * Span contains all data about a span
  */
  -export class Span implements SpanInterface, SpanContext {
  +export class Span implements SpanInterface {
  /**
  * @inheritDoc
  */
  