remove macro JVET_L0283_MULTI_REF_LINE

source/Lib/CommonLib/CodingStatistics.h

source/Lib/CommonLib/CommonDef.h

source/Lib/CommonLib/Contexts.cpp

source/Lib/CommonLib/Contexts.h

source/Lib/CommonLib/IntraPrediction.cpp

source/Lib/CommonLib/IntraPrediction.h

source/Lib/CommonLib/TypeDef.h

source/Lib/CommonLib/Unit.cpp

source/Lib/CommonLib/Unit.h

source/Lib/CommonLib/UnitTools.cpp

source/Lib/CommonLib/UnitTools.h

source/Lib/CommonLib/dtrace_blockstatistics.cpp

source/Lib/CommonLib/dtrace_blockstatistics.h

source/Lib/DecoderLib/CABACReader.cpp

source/Lib/DecoderLib/CABACReader.h

source/Lib/EncoderLib/CABACWriter.cpp

source/Lib/EncoderLib/CABACWriter.h

source/Lib/EncoderLib/EncCu.cpp

source/Lib/EncoderLib/IntraSearch.cpp

source/Lib/EncoderLib/IntraSearch.h