remove accessors in ActionAST added for external serialization

opm/parser/eclipse/EclipseState/Schedule/Action/ActionAST.hpp

@@ -47,8 +47,6 @@ public:
     AST(const std::shared_ptr<ASTNode>& cond);
     Result eval(const Context& context) const;
 
-    std::shared_ptr<ASTNode> getCondition() const;
-
     bool operator==(const AST& data) const;
 
     template<class Serializer>

src/opm/parser/eclipse/EclipseState/Schedule/Action/ActionAST.cpp

@@ -51,11 +51,6 @@ Action::Result AST::eval(const Action::Context& context) const {
 }
 
 
-std::shared_ptr<ASTNode> AST::getCondition() const {
-    return condition;
-}
-
-
 bool AST::operator==(const AST& data) const {
     if ((condition && !data.condition) ||
         (!condition && data.condition))