numparam/xpressn.c, don't mess the case of quoted strings

and drop `dico_t.option' which is nowhere set

src/frontend/numparam/numparam.h

@@ -48,7 +48,6 @@ typedef struct entry_s {
 
 typedef struct {                /* the input scanner data structure */
     SPICE_DSTRING srcfile;      /* last piece of source file name */
-    SPICE_DSTRING option;       /* one-character translator options */
     SPICE_DSTRING lookup_buf;   /* useful temp buffer for quick symbol lookup */
     int srcline;
     int oldline;

src/frontend/numparam/xpressn.c

@@ -245,7 +245,6 @@ initdico(dico_t *dico)
     int asize = 10;           /* default allocation depth of the synbol stack */
     COMPATMODE_T compat_mode;
 
-    spice_dstring_init(&(dico->option));
     spice_dstring_init(&(dico->srcfile));
 
     dico->srcline = -1;
@@ -1116,9 +1115,6 @@ evaluate(dico_t *dico, SPICE_DSTRINGPTR qstr_p, char *t, unsigned char mode)
                 j++;
                 char c = /* ibf->bf[j]; */ entry->sbbase[j];
 
-                if (cpos('3', spice_dstring_value(&dico->option)) <= 0)
-                    c = upcase(c); /* spice-2 */
-
                 if ((c == '\"') || (c < ' '))
                     break;