WL#5486: Remove code for unsupported platforms

Remove ASM for MC68000 and Vax.

strings/strend.c

@@ -24,27 +24,14 @@
     is,  strend(s)-s  ==  strlen(s). This is useful for adding things at
     the end of strings.  It is redundant, because  strchr(s,'\0')  could
     be used instead, but this is clearer and faster.
-    Beware: the asm version works only if strlen(s) < 65535.
 */
 
 #include <my_global.h>
 #include "m_string.h"
 
-#if	VaxAsm
-
-char *strend(s)
-const char *s;
-{
-  asm("locc $0,$65535,*4(ap)");
-  asm("movl r1,r0");
-}
-
-#else	/* ~VaxAsm */
-
 char *strend(register const char *s)
 {
   while (*s++);
   return (char*) (s-1);
 }
 
-#endif	/* VaxAsm */