0032806: Coding - get rid of unused headers [Contap to Extrema]

src/Expr/Expr_Sinh.cxx

@@ -20,12 +20,9 @@
 #include <Expr_Cosh.hxx>
 #include <Expr_GeneralExpression.hxx>
 #include <Expr_NamedUnknown.hxx>
-#include <Expr_NotEvaluable.hxx>
-#include <Expr_NumericValue.hxx>
 #include <Expr_Operators.hxx>
 #include <Expr_Product.hxx>
 #include <Expr_Sinh.hxx>
-#include <Standard_NumericError.hxx>
 #include <Standard_Type.hxx>
 #include <TCollection_AsciiString.hxx>