[ntuple] Remove unused RNTupleDescriptorBuilder::Reset()

Author: hahnjo

tree/ntuple/inc/ROOT/RNTupleDescriptor.hxx

@@ -1597,9 +1597,6 @@ public:
    RResult<void> AddExtraTypeInfo(RExtraTypeInfoDescriptor &&extraTypeInfoDesc);
    void ReplaceExtraTypeInfo(RExtraTypeInfoDescriptor &&extraTypeInfoDesc);
 
-   /// Clears so-far stored clusters, fields, and columns and return to a pristine RNTupleDescriptor
-   void Reset();
-
    /// Mark the beginning of the header extension; any fields and columns added after a call to this function are
    /// annotated as begin part of the header extension.
    void BeginHeaderExtension();

tree/ntuple/src/RNTupleDescriptor.cxx

@@ -1294,17 +1294,6 @@ ROOT::RResult<void> ROOT::Internal::RNTupleDescriptorBuilder::AddClusterGroup(RC
    return RResult<void>::Success();
 }
 
-void ROOT::Internal::RNTupleDescriptorBuilder::Reset()
-{
-   fDescriptor.fName = "";
-   fDescriptor.fDescription = "";
-   fDescriptor.fFieldDescriptors.clear();
-   fDescriptor.fColumnDescriptors.clear();
-   fDescriptor.fClusterDescriptors.clear();
-   fDescriptor.fClusterGroupDescriptors.clear();
-   fDescriptor.fHeaderExtension.reset();
-}
-
 void ROOT::Internal::RNTupleDescriptorBuilder::SetSchemaFromExisting(const RNTupleDescriptor &descriptor)
 {
    fDescriptor = descriptor.CloneSchema();