fix comments

Author: mydea

packages/core/src/tracing/trace.ts

@@ -250,8 +250,6 @@ function createChildSpanOrTransaction({
       traceId,
       parentSpanId,
       parentSampled: sampled,
-      // TODO: We should probably only set this if we know we are continuing a trace
-      // For now, there isn't really a way to know this from in here, though...
       ...spanContext,
     });
 
@@ -260,13 +258,6 @@ function createChildSpanOrTransaction({
     }
   }
 
-  // TODO v8: Technically `startTransaction` can return undefined, which is not reflected by the types
-  // This happens if tracing extensions have not been added
-  // In this case, we just want to return a non-recording span
-  if (!span) {
-    return new SentryNonRecordingSpan();
-  }
-
   setCapturedScopesOnSpan(span, scope, isolationScope);
 
   return span;