| Removed CalcItemRectClosestPoint() which was weird and not really used by anyone except demo code. If you need it it's easy to replicate on your side. Removed internal corresponding ImRect::GetClosestPoint() for now.
Essentially revert  | 
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| imgui.cpp | 
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| imgui.h | 
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| imgui_demo.cpp | 
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| imgui_internal.h | 
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