diff --git a/src/openrct2/core/File.cpp b/src/openrct2/core/File.cpp
index 814e5072ea..1ee75bc1b8 100644
--- a/src/openrct2/core/File.cpp
+++ b/src/openrct2/core/File.cpp
@@ -143,16 +143,3 @@ namespace File
         return Platform::GetFileSize(path);
     }
 } // namespace File
-
-bool writeentirefile(const utf8* path, const void* buffer, size_t length)
-{
-    try
-    {
-        File::WriteAllBytes(String::ToStd(path), buffer, length);
-        return true;
-    }
-    catch (const std::exception&)
-    {
-        return false;
-    }
-}
diff --git a/src/openrct2/util/Util.h b/src/openrct2/util/Util.h
index 3f26c22a21..95dfc282df 100644
--- a/src/openrct2/util/Util.h
+++ b/src/openrct2/util/Util.h
@@ -31,7 +31,6 @@ void path_set_extension(utf8* path, const utf8* newExtension, size_t size);
 void path_append_extension(utf8* path, const utf8* newExtension, size_t size);
 void path_remove_extension(utf8* path);
 void path_end_with_separator(utf8* path, size_t size);
-bool writeentirefile(const utf8* path, const void* buffer, size_t length);
 
 bool sse41_available();
 bool avx2_available();