[PATCH] Only emit read_encoded_value into unwind-dw2.c

[Mark Kettenis]

Sorry Jakub, but both patches are unusable.  Take a look at
libstdc++-v3/libsupc++/eh_personality.cc and libjava/exception.cc for
stuff that uses stuff from "unwind-pe.h".

Right now I think that instead of compiling in extra stuff if
WANT_READ_ENCODED_VALUE is defined, we have to leave stuff out if
NO_READ_ENCODED_VALUE (or whatever) is defined, and add the
appropriate #define to unwind-dw2-fde.h.

Sorry, no patch.