[libsolidity] Types: eliminate redundant MagicType::metaType() (use TypeProvider instead)

libsolidity/ast/Types.cpp

@@ -3415,11 +3415,6 @@ string ModuleType::toString(bool) const
 	return string("module \"") + m_sourceUnit.annotation().path + string("\"");
 }
 
-MagicType const* MagicType::metaType(TypePointer _type)
-{
-	return TypeProvider::metaType(_type);
-}
-
 string MagicType::richIdentifier() const
 {
 	switch (m_kind)

libsolidity/ast/Types.h

@@ -1346,9 +1346,6 @@ public:
 
 	Category category() const override { return Category::Magic; }
 
-	/// Factory function for meta type
-	static MagicType const* metaType(TypePointer _type);
-
 	TypeResult binaryOperatorResult(Token, Type const*) const override
 	{
 		return nullptr;