Cleaned code for temporal rigid registration
Cleaned code for temporal rigid registration

RayRuizhiLiao/ITK_4D,RayRuizhiLiao/ITK_4D,RayRuizhiLiao/ITK_4D,RayRuizhiLiao/ITK_4D,RayRuizhiLiao/ITK_4D,RayRuizhiLiao/ITK_4D,RayRuizhiLiao/ITK_4D