make: unifdef SUN5_0 (defined)

@@ -1170,15 +1170,13 @@
                 posix  = true;
                         /* with posix on, use the posix get rule */
                 sccs_get_rule = sccs_get_posix_rule;
                         /* turn keep state off being SunPro make specific */
                 keep_state = false;
-                #if defined(SUN5_0)
                 /* Use /usr/xpg4/bin/sh on Solaris */
                 MBSTOWCS(wcs_buffer, NOCATGETS("/usr/xpg4/bin/sh"));
                 (void) SETVAR(shell_name, GETNAME(wcs_buffer, FIND_LENGTH), false);
-                #endif
                 if (trace_reader) {
                         (void) printf("%s:\n", posix_name->string_mb);
                 }
                 break;
 

@@ -1923,11 +1921,9 @@
                 (void) fprintf(stderr,
                                catgets(catd, 1, 115, "Current working directory %s\n"),
                                get_current_path());
         }
         (void) fflush(stderr);
-#if defined(SUN5_0) || defined(HP_UX)
         exit_status = 1;
-#endif
         exit(1);
 }