Revert "Try passing osx compilation."

This reverts commit 56df925.

Author: trivialfis

src/data/adapter.h

@@ -109,7 +109,6 @@ class NoMetaInfo {
   const float* Weights() const { return nullptr; }
   const uint64_t* Qid() const { return nullptr; }
   const float* BaseMargin() const { return nullptr; }
-  virtual ~NoMetaInfo() = default;
 };
 
 };  // namespace detail
@@ -151,8 +150,6 @@ class CSRAdapterBatch : public detail::NoMetaInfo {
   }
   size_t Size() const { return num_rows_; }
 
-  ~CSRAdapterBatch() noexcept override = default;
-
  private:
   const size_t* row_ptr_;
   const unsigned* feature_idx_;
@@ -172,7 +169,6 @@ class CSRAdapter : public detail::SingleBatchDataIter<CSRAdapterBatch> {
   const CSRAdapterBatch& Value() const override { return batch_; }
   size_t NumRows() const { return num_rows_; }
   size_t NumColumns() const { return num_columns_; }
-  ~CSRAdapter() noexcept override = default;
 
  private:
   CSRAdapterBatch batch_;
@@ -209,7 +205,6 @@ class DenseAdapterBatch : public detail::NoMetaInfo {
   const Line GetLine(size_t idx) const {
     return Line(values_ + idx * num_features_, num_features_, idx);
   }
-  ~DenseAdapterBatch() noexcept override = default;
 
  private:
   const float* values_;
@@ -227,7 +222,6 @@ class DenseAdapter : public detail::SingleBatchDataIter<DenseAdapterBatch> {
 
   size_t NumRows() const { return num_rows_; }
   size_t NumColumns() const { return num_columns_; }
-  ~DenseAdapter() noexcept override = default;
 
  private:
   DenseAdapterBatch batch_;