remove macro RWP_SEI_MESSAGE

source/App/TAppEncoder/TAppEncCfg.cpp

source/App/TAppEncoder/TAppEncCfg.h

source/App/TAppEncoder/TAppEncTop.cpp

source/Lib/TLibCommon/SEI.cpp

source/Lib/TLibCommon/SEI.h

source/Lib/TLibCommon/TypeDef.h

source/Lib/TLibDecoder/SEIread.cpp

source/Lib/TLibDecoder/SEIread.h

source/Lib/TLibEncoder/SEIEncoder.cpp

source/Lib/TLibEncoder/SEIEncoder.h

source/Lib/TLibEncoder/SEIwrite.cpp

source/Lib/TLibEncoder/SEIwrite.h

source/Lib/TLibEncoder/TEncCfg.h

source/Lib/TLibEncoder/TEncGOP.cpp