fix(files): remove dead renderError state from IframePreview

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/files/components/file-viewer/file-viewer.tsx

@@ -162,7 +162,6 @@ const IframePreview = memo(function IframePreview({
   const streamingBufferSeqRef = useRef(0)
   const [streamingBufferSeq, setStreamingBufferSeq] = useState(0)
   const [rendering, setRendering] = useState(false)
-  const [renderError, setRenderError] = useState<string | null>(null)
 
   useEffect(() => {
     if (streamingContent === undefined) return
@@ -224,9 +223,6 @@ const IframePreview = memo(function IframePreview({
     [streamingBuffer]
   )
 
-  if (streamingContent === undefined && renderError)
-    return <PreviewError label='PDF' error={renderError} />
-
   if (streamingContent !== undefined) {
     if (!streamingSource) {
       return <div className='relative flex flex-1 overflow-hidden'>{PDF_PAGE_SKELETON}</div>