remove from TypeSystemSwiftTypeRef too

(cherry picked from commit 2a7a9f8)

Author: kastiglione

lldb/source/Plugins/TypeSystem/Swift/TypeSystemSwiftTypeRef.cpp

@@ -2355,13 +2355,6 @@ CompilerType TypeSystemSwiftTypeRef::GetChildCompilerTypeAtIndex(
        ast_child_is_deref_of_parent, valobj, ast_language_flags));
 }
 
-uint32_t
-TypeSystemSwiftTypeRef::GetIndexOfChildWithName(opaque_compiler_type_t type,
-                                                const char *name,
-                                                bool omit_empty_base_classes) {
-  return m_swift_ast_context->GetIndexOfChildWithName(
-      ReconstructType(type), name, omit_empty_base_classes);
-}
 size_t TypeSystemSwiftTypeRef::GetIndexOfChildMemberWithName(
     opaque_compiler_type_t type, const char *name, bool omit_empty_base_classes,
     std::vector<uint32_t> &child_indexes) {

lldb/source/Plugins/TypeSystem/Swift/TypeSystemSwiftTypeRef.h

@@ -163,9 +163,6 @@ class TypeSystemSwiftTypeRef : public TypeSystemSwift {
       uint32_t &child_bitfield_bit_size, uint32_t &child_bitfield_bit_offset,
       bool &child_is_base_class, bool &child_is_deref_of_parent,
       ValueObject *valobj, uint64_t &language_flags) override;
-  uint32_t GetIndexOfChildWithName(lldb::opaque_compiler_type_t type,
-                                   const char *name,
-                                   bool omit_empty_base_classes) override;
   size_t
   GetIndexOfChildMemberWithName(lldb::opaque_compiler_type_t type,
                                 const char *name, bool omit_empty_base_classes,