Revert upstream ac234a9c55ae since it makes dolphin crash when
unfolding/folding large directories.
See https://bugs.kde.org/show_bug.cgi?id=422282 for details.
---
 src/views/dolphinview.cpp |   13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

--- a/src/views/dolphinview.cpp
+++ b/src/views/dolphinview.cpp
@@ -1520,24 +1520,13 @@ void DolphinView::calculateItemCount(int
         return;
     }
 
-    // In case we have a precomputed value
-    const auto job = KIO::statDetails(m_model->rootItem().url(), KIO::StatJob::SourceSide, KIO::StatRecursiveSize, KIO::HideProgressInfo);
-    job->exec();
-    const auto entry =  job->statResult();
-    if (entry.contains(KIO::UDSEntry::UDS_RECURSIVE_SIZE)) {
-        totalFileSize = static_cast<KIO::filesize_t>(entry.numberValue(KIO::UDSEntry::UDS_RECURSIVE_SIZE));
-        countFileSize = false;
-    }
-
     for (int i = 0; i < itemCount; ++i) {
         const KFileItem item = m_model->fileItem(i);
         if (item.isDir()) {
             ++folderCount;
         } else {
             ++fileCount;
-            if (countFileSize) {
-                totalFileSize += item.size();
-            }
+            totalFileSize += item.size();
         }
     }
 }
