coverity#735496 Dead default in switch

Change-Id: I5eddf8be2a98aa57fdcdf44d390def6522caa25d
diff --git a/starmath/source/node.cxx b/starmath/source/node.cxx
index 75d7529..9a6ea0c 100644
--- a/starmath/source/node.cxx
+++ b/starmath/source/node.cxx
@@ -1635,9 +1635,6 @@ void SmSubSupNode::Arrange(const OutputDevice &rDev, const SmFormat &rFormat)
                                RHA_CENTER, RVA_BASELINE);
                aPos.Y() -= nDist;
                break;
            default :
                SAL_WARN("starmath", "unknown case");
                break;
        }

        pSubSup->MoveTo(aPos);