Remove apollo support

cde/lib/DtSvc/DtUtil2/CmdUtility.c

@@ -37,11 +37,7 @@
 #include <string.h>
 #include <sys/param.h>
 
-#ifdef __apollo
-#include "/sys5/usr/include/unistd.h"
-#else
 #include <unistd.h>
-#endif
 #include <limits.h>
 #include <sys/stat.h>
 

cde/lib/DtSvc/DtUtil2/DtosP.h

@@ -160,7 +160,7 @@ static char SCCSID[] = "OSF/Motif: @(#)_DtosP.h	4.16 91/09/12";
 /*
  * warning: mips alloca is unsuitable, do not use.
  */
-#  if defined(vax) || defined(sun) || defined(apollo) || defined(stellar)
+#  if defined(vax) || defined(sun) || defined(stellar)
 /*
  * Some System V boxes extract alloca.o from /lib/libPW.a; if you
  * decide that you don't want to use alloca, you might want to fix it here.