discovered that soundexp.cpp and fceustr.cpp are obsolete

[[Split portion of a mixed commit.]]

Makefile.am

@@ -1,8 +1,7 @@
 AUTOMAKE_OPTIONS = subdir-objects
 
 bin_PROGRAMS	=	fceu
-fceu_SOURCES 	= 	fceustr.cpp cart.cpp cheat.cpp crc32.cpp config.cpp debug.cpp endian.cpp fceu.cpp fds.cpp file.cpp filter.cpp general.cpp ines.cpp input.cpp md5.cpp memory.cpp netplay.cpp nsf.cpp palette.cpp ppu.cpp sound.cpp state.cpp unif.cpp video.cpp vsuni.cpp wave.cpp x6502.cpp movie.cpp
-# soundexp.cpp
+fceu_SOURCES 	= 	cart.cpp cheat.cpp crc32.cpp config.cpp debug.cpp endian.cpp fceu.cpp fds.cpp file.cpp filter.cpp general.cpp ines.cpp input.cpp md5.cpp memory.cpp netplay.cpp nsf.cpp palette.cpp ppu.cpp sound.cpp state.cpp unif.cpp video.cpp vsuni.cpp wave.cpp x6502.cpp movie.cpp
 
 include $(srcdir)/boards/Makefile.am.inc
 include $(srcdir)/input/Makefile.am.inc