Moved legacy code into archive, ready for a new rapid(?) prototype.

I may regret doing this!

src/c/utils.c

@@ -1,33 +0,0 @@
-/*
- * utils.c
- *
- * little generally useful functions which aren't in any way special to PSSE.
- *
- * (c) 2019 Simon Brooke <simon@journeyman.cc>
- * Licensed under GPL version 2.0, or, at your option, any later version.
- */
-
-#include <ctype.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-int index_of( char c, const char *s ) {
-    int i;
-
-    for ( i = 0; s[i] != c && s[i] != 0; i++ );
-
-    return s[i] == c ? i : -1;
-}
-
-char *trim( char *s ) {
-    int i;
-
-    for ( i = strlen( s ); ( isblank( s[i] ) || iscntrl( s[i] ) ) && i >= 0;
-          i-- ) {
-        s[i] = '\0';
-    }
-    for ( i = 0; s[i] != '\0' && ( isblank( s[i] ) || iscntrl( s[i] ) ); i++ );
-
-    return ( char * ) &s[i];
-}