writerfilter: use '= default' to define a trivial destructor

Change-Id: I63eb9e64ce1dbacdcdaf77beb1a5a87c3a8d26e8
Reviewed-on: https://gerrit.libreoffice.org/79073
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
diff --git a/writerfilter/source/dmapper/TableManager.cxx b/writerfilter/source/dmapper/TableManager.cxx
index c41cee1..03fab02 100644
--- a/writerfilter/source/dmapper/TableManager.cxx
+++ b/writerfilter/source/dmapper/TableManager.cxx
@@ -462,9 +462,7 @@ TableManager::TableManager()
    m_bCellLastParaAfterAutospacing = false;
}

TableManager::~TableManager()
{
}
TableManager::~TableManager() = default;

}