Fixes excessive messages

Author: GOB52

src/m5_utility/container/circular_buffer.cpp

@@ -0,0 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: 2025 M5Stack Technology CO LTD
+ *
+ * SPDX-License-Identifier: MIT
+ */
+/*!
+  @file circular_buffer.cpp
+  @brief Circular buffer with STL-like interface
+*/
+#include "circular_buffer.hpp"
+#if __cplusplus >= 201703L
+#pragma message "Using std::optional"
+#else
+#pragma message "Using m5::stl::optional"
+#endif

src/m5_utility/container/circular_buffer.hpp

@@ -15,10 +15,8 @@
 #include <iterator>
 #include <cassert>
 #if __cplusplus >= 201703L
-#pragma message "Using std::optional"
 #include <optional>
 #else
-#pragma message "Using m5::stl::optional"
 #include "../stl/optional.hpp"
 #endif