diff --git a/imgui_internal.h b/imgui_internal.h
index e909594f..c96e2a56 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h
@@ -690,9 +690,6 @@ struct ImPool
     int         GetBufSize() const                  { return Buf.Size; }
     int         GetMapSize() const                  { return Map.Data.Size; }   // It is the map we need iterate to find valid items, since we don't have "alive" storage anywhere
     T*          TryGetMapData(ImPoolIdx n)          { int idx = Map.Data[n].val_i; if (idx == -1) return NULL; return GetByIndex(idx); }
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    int         GetSize()                           { return GetMapSize(); } // For ImPlot: should use GetMapSize() from (IMGUI_VERSION_NUM >= 18304)
-#endif
 };
 
 // Helper: ImChunkStream<>