mkv: removed unnecessary variable EbmlParser::mi_remain_size

Since this data-member is effectively unused after initialization, it
has been removed.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/demux/mkv/Ebml_parser.cpp

@@ -39,7 +39,6 @@ EbmlParser::EbmlParser( EbmlStream *es, EbmlElement *el_start, demux_t *p_demux,
     mb_keep( false ),
     mb_dummy( b_with_dummy )
 {
-    mi_remain_size[0] = el_start->GetSize();
     memset( m_el, 0, sizeof( *m_el ) * M_EL_MAXSIZE);
     m_el[0] = el_start;
 }

modules/demux/mkv/Ebml_parser.hpp

@@ -60,7 +60,6 @@ class EbmlParser
     EbmlStream  *m_es;
     int          mi_level;
     EbmlElement *m_el[M_EL_MAXSIZE];
-    int64_t      mi_remain_size[10];
 
     EbmlElement *m_got;