remove nsIVariant.h and nsVariant.cpp as per bug #16987 and changes already in for Unix (thanks brad) and Mac, r=danm

xpcom/ds/makefile.win

@@ -39,7 +39,6 @@ EXPORTS =                          \
         nsISimpleEnumerator.h      \
         nsISizeOfHandler.h         \
         nsIUnicharBuffer.h         \
-        nsIVariant.h               \
         nsInt64.h                  \
         nsQuickSort.h              \
         nsStr.h                    \
@@ -105,7 +104,6 @@ CPP_OBJS =                                        \
         .\$(OBJDIR)\nsSupportsArrayEnumerator.obj \
         .\$(OBJDIR)\nsSupportsPrimitives.obj      \
         .\$(OBJDIR)\nsUnicharBuffer.obj           \
-        .\$(OBJDIR)\nsVariant.obj                 \
         .\$(OBJDIR)\nsVoidArray.obj               \
         .\$(OBJDIR)\nsXPIDLString.obj             \
         .\$(OBJDIR)\plvector.obj                  \