[vala/0.40] libvaladoc: Drop unused code

[Rico Tzschichholz <ricotz src gnome org>]

commit d04200114ef6e421168ffeaa24d0b9266996eef1
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Fri Oct 11 16:19:19 2019 +0200

    libvaladoc: Drop unused code

 valadoc/treebuilder.vala | 61 ------------------------------------------------
 1 file changed, 61 deletions(-)
---
diff --git a/valadoc/treebuilder.vala b/valadoc/treebuilder.vala
index e03d9d80d..b128dfc80 100644
--- a/valadoc/treebuilder.vala
+++ b/valadoc/treebuilder.vala
@@ -284,10 +284,6 @@ public class Valadoc.Drivers.TreeBuilder : Vala.CodeVisitor {
                return Vala.get_ccode_type_id (node);
        }
 
-       private bool is_reference_counting (Vala.TypeSymbol sym) {
-               return Vala.is_reference_counting (sym);
-       }
-
        private string? get_ref_function (Vala.Class sym) {
                return Vala.get_ccode_ref_function (sym);
        }
@@ -629,63 +625,6 @@ public class Valadoc.Drivers.TreeBuilder : Vala.CodeVisitor {
                return false;
        }
 
-       private bool is_type_reference_unowned (Vala.DataType? element) {
-                       if (element == null) {
-                               return false;
-                       }
-
-                       // non ref counted types are weak, not unowned
-                       if (element.data_type is Vala.TypeSymbol
-                               && is_reference_counting ((Vala.TypeSymbol) element.data_type) == true)
-                       {
-                               return false;
-                       }
-
-                       // FormalParameters are weak by default
-                       return (element.parent_node is Vala.Parameter == false)
-                               ? element.is_weak ()
-                               : false;
-       }
-
-       private bool is_type_reference_owned (Vala.DataType? element) {
-               if (element == null) {
-                       return false;
-               }
-
-               weak Vala.CodeNode parent = element.parent_node;
-
-               // parameter:
-               if (parent is Vala.Parameter) {
-                       if (((Vala.Parameter)parent).direction != Vala.ParameterDirection.IN) {
-                               return false;
-                       }
-                       return ((Vala.Parameter)parent).variable_type.value_owned;
-               }
-
-               return false;
-       }
-
-       private bool is_type_reference_weak (Vala.DataType? element) {
-               if (element == null) {
-                       return false;
-               }
-
-               // non ref counted types are unowned, not weak
-               if (element.data_type is Vala.TypeSymbol
-                       && is_reference_counting ((Vala.TypeSymbol) element.data_type) == false)
-               {
-                       return false;
-               }
-
-               // arrays are unowned, not weak
-               if (element is Vala.ArrayType) {
-                       return false;
-               }
-
-               // FormalParameters are weak by default
-               return (element.parent_node is Vala.Parameter == false)? element.is_weak () : false;
-       }
-
        private Ownership get_type_reference_ownership (Vala.DataType? element) {
                unowned Vala.DataType? type = element;
                if (type != null) {