diff --git a/poincare/include/poincare/horizontal_layout_node.h b/poincare/include/poincare/horizontal_layout_node.h
index 4b8859d6b..bc387cd89 100644
--- a/poincare/include/poincare/horizontal_layout_node.h
+++ b/poincare/include/poincare/horizontal_layout_node.h
@@ -32,7 +32,6 @@ public:
   // TreeNode
   size_t size() const override { return sizeof(HorizontalLayoutNode); }
   int numberOfChildren() const override { return m_numberOfChildren; }
-  bool isChildRemovalTolerant() const override { return true; }
   void incrementNumberOfChildren(int increment = 1) override { m_numberOfChildren+= increment; }
   void decrementNumberOfChildren(int decrement = 1) override {
     assert(m_numberOfChildren >= decrement);
diff --git a/poincare/include/poincare/n_ary_expression_node.h b/poincare/include/poincare/n_ary_expression_node.h
index 7db109612..17800e554 100644
--- a/poincare/include/poincare/n_ary_expression_node.h
+++ b/poincare/include/poincare/n_ary_expression_node.h
@@ -9,7 +9,6 @@ class NAryExpressionNode : public ExpressionNode { // TODO: VariableArityExpress
 public:
   //Tree
   int numberOfChildren() const override { return m_numberOfChildren; }
-  bool isChildRemovalTolerant() const override { return true; }
   void incrementNumberOfChildren(int increment = 1) { m_numberOfChildren+= increment; }
   void decrementNumberOfChildren(int decrement = 1) {
     assert(m_numberOfChildren >= decrement);
diff --git a/poincare/include/poincare/tree_by_reference.h b/poincare/include/poincare/tree_by_reference.h
index 27c89fc45..5a411efb1 100644
--- a/poincare/include/poincare/tree_by_reference.h
+++ b/poincare/include/poincare/tree_by_reference.h
@@ -36,7 +36,6 @@ public:
 
   bool isDefined() const { return m_identifier != TreePool::NoNodeIdentifier && node() != nullptr; }
   bool isAllocationFailure() const { return isDefined() && node()->isAllocationFailure(); }
-  bool isChildRemovalTolerant() const { return isDefined() && node()->isChildRemovalTolerant(); }
 
   int nodeRetainCount() const {
     assert(isDefined());
diff --git a/poincare/include/poincare/tree_node.h b/poincare/include/poincare/tree_node.h
index 3d3e17144..0581ae85d 100644
--- a/poincare/include/poincare/tree_node.h
+++ b/poincare/include/poincare/tree_node.h
@@ -25,7 +25,6 @@ public:
   bool isStatic() const;
   virtual size_t size() const = 0;
   int identifier() const { return m_identifier; }
-  virtual bool isChildRemovalTolerant() const { return false; }
   int retainCount() const { return m_referenceCounter; }
   void setReferenceCounter(int refCount) { //TODO make this method privte with only friends that can access it
     if (isStatic()) {