Remove hpversion.h from repository

This patch removes hpversion.h from the repository, this also untangles a
lot of ifdef mess. This closes bug CDExc19524.

cde/programs/dtwm/Imakefile

@@ -33,8 +33,7 @@ SRCSXM = \
         WmMenu.c        WmProperty.c    WmProtocol.c \
         WmResCvt.c      WmResParse.c    WmResource.c \
         WmSignal.c      WmWinConf.c     WmWinInfo.c \
-        WmWinList.c     WmWinState.c    version.c \
-        WmMultiHead.c
+        WmWinList.c     WmWinState.c    WmMultiHead.c
 
 SRCSDT = \
         Button.c        Callback.c      Clock.c \
@@ -55,8 +54,7 @@ OBJSXM = \
         WmMenu.o        WmProperty.o    WmProtocol.o \
         WmResCvt.o      WmResParse.o    WmResource.o \
         WmSignal.o      WmWinConf.o     WmWinInfo.o \
-        WmWinList.o     WmWinState.o    version.o \
-        WmMultiHead.o
+        WmWinList.o     WmWinState.o    WmMultiHead.o
 
 OBJSDT = \
         Button.o        Callback.o      Clock.o \