Updated the shared_ptr_data_loader.h

I have merge the declaration and implementation of 'load_into' function.

Author: Tanish2101

extension/data_loader/shared_ptr_data_loader.h

@@ -49,17 +49,7 @@ class SharedPtrDataLoader final : public executorch::runtime::DataLoader {
     size_t offset,
     size_t size,
     const DataLoader::SegmentInfo& segment_info,
-    void* buffer) const override;
-
-  ET_NODISCARD executorch::runtime::Result<size_t> size() const override {
-    return size_;
-  }
-
-  ET_NODISCARD executorch::runtime::Error SharedPtrDataLoader::load_into(
-    size_t offset,
-    size_t size,
-    const DataLoader::SegmentInfo& segment_info,
-    void* buffer) const {
+    void* buffer) const override {
     ET_CHECK_OR_RETURN_ERROR(
       offset + size <= size_,
       executorch::runtime::Error::OutOfBounds,
@@ -70,8 +60,11 @@ class SharedPtrDataLoader final : public executorch::runtime::DataLoader {
 
   std::memcpy(buffer, static_cast<uint8_t*>(data_.get()) + offset, size);
   return executorch::runtime::Error::Ok;
-}
+  }
 
+  ET_NODISCARD executorch::runtime::Result<size_t> size() const override {
+    return size_;
+  }
 
  private:
   const std::shared_ptr<void> data_;