revert reading sampled from DSC

Author: Lms24

packages/browser/src/tracing/browserTracingIntegration.ts

@@ -18,6 +18,7 @@ import {
   getIsolationScope,
   getRootSpan,
   registerSpanErrorInstrumentation,
+  spanIsSampled,
   spanToJSON,
   startIdleSpan,
   withScope,
@@ -297,13 +298,10 @@ export const browserTracingIntegration = ((_options: Partial<BrowserTracingOptio
         const scope = getCurrentScope();
         const oldPropagationContext = scope.getPropagationContext();
 
-        const newDsc = oldPropagationContext.dsc || getDynamicSamplingContextFromSpan(span);
-        const newDscSampled = newDsc.sampled === 'true' ? true : newDsc.sampled === 'false' ? false : undefined;
-
         const newPropagationContext = {
           ...oldPropagationContext,
-          sampled: newDscSampled,
-          dsc: newDsc,
+          sampled: oldPropagationContext.sampled !== undefined ? oldPropagationContext.sampled : spanIsSampled(span),
+          dsc: oldPropagationContext.dsc || getDynamicSamplingContextFromSpan(span),
         };
 
         scope.setPropagationContext(newPropagationContext);