Revert extraneous "Remarks" heading added in C2956 error reference

Author: Rageking8

docs/error-messages/compiler-errors-2/compiler-error-c2956.md

@@ -13,8 +13,6 @@ helpviewer_keywords: ["C2956"]
 
 The deallocation function found for the placement new expression matches one of the usual deallocation functions. Either an implicit compiler-generated deallocation or an explicit `delete` (or `delete[]`) would use the wrong deallocation function.
 
-## Remarks
-
 Error C2956 indicates you used a *placement new expression* (a `new` expression that takes parameters) in a way that can cause a memory leak or runtime crash. It usually means the resulting value can't be deleted in a typical way. That is, either an explicit `delete` (or `delete[]`) expression in your code, or the implicit deallocation when a constructor throws an exception, could invoke the wrong `operator delete` or supply it with the wrong parameters.
 
 The C++ standard specifies *usual deallocation functions* as overloads of `operator delete` or `operator delete[]` that take extra parameters of type `std::size_t` (C++14 or later), `std::align_val_t` (C++17 or later), and `std::destroying_delete_t` (C++20 or later). When you use a placement new expression, the compiler looks for a matching `operator delete` function that takes the same parameters (after the first one). If one is found and its signature matches a usual deallocation function, the compiler reports error C2956.