diff --git a/src/openrct2/core/MemoryStream.cpp b/src/openrct2/core/MemoryStream.cpp
index a0da18d123..74f8b0e362 100644
--- a/src/openrct2/core/MemoryStream.cpp
+++ b/src/openrct2/core/MemoryStream.cpp
@@ -108,19 +108,6 @@ namespace OpenRCT2
         return _data;
     }
 
-    void* MemoryStream::GetDataCopy() const
-    {
-        auto result = Memory::Allocate<void>(_dataSize);
-        std::memcpy(result, _data, _dataSize);
-        return result;
-    }
-
-    void* MemoryStream::TakeData()
-    {
-        _access &= ~MEMORY_ACCESS::OWNER;
-        return _data;
-    }
-
     bool MemoryStream::CanRead() const
     {
         return (_access & MEMORY_ACCESS::READ) != 0;
diff --git a/src/openrct2/core/MemoryStream.h b/src/openrct2/core/MemoryStream.h
index 014a58ab29..871e0df962 100644
--- a/src/openrct2/core/MemoryStream.h
+++ b/src/openrct2/core/MemoryStream.h
@@ -48,8 +48,6 @@ namespace OpenRCT2
         MemoryStream& operator=(MemoryStream&& mv) noexcept;
 
         const void* GetData() const override;
-        void* GetDataCopy() const;
-        void* TakeData();
 
         ///////////////////////////////////////////////////////////////////////////
         // ISteam methods