Remove ux2st & st2ux deadcode

My pleasure: we get enough legacy code to handle and understand.
No need for additional `#if 0` diversion.

platforms/unix/vm-display-X11/sqUnixX11.c

@@ -461,78 +461,6 @@ void   browserProcessCommand(void);       /* see sqUnixMozilla.c */
 
 static inline int min(int x, int y) { return (x < y) ? x : y; }
 
-
-#if 0
-
-/* Conversion table from X to Squeak (reversible) */
-
-static unsigned char X_to_Squeak[256] =
-{
-  0,   1,   2,   3,   4,   5,   6,   7,       /*   0 -   7 */
-  8,   9,   13,  11,  12,  10,  14,  15,      /*   8 -  15 */
-  16,  17,  18,  19,  20,  21,  22,  23,      /*  16 -  23 */
-  24,  25,  26,  27,  28,  29,  30,  31,      /*  24 -  31 */
-  32,  33,  34,  35,  36,  37,  38,  39,      /*  32 -  39 */
-  40,  41,  42,  43,  44,  45,  46,  47,      /*  40 -  47 */
-  48,  49,  50,  51,  52,  53,  54,  55,      /*  48 -  55 */
-  56,  57,  58,  59,  60,  61,  62,  63,      /*  56 -  63 */
-  64,  65,  66,  67,  68,  69,  70,  71,      /*  64 -  71 */
-  72,  73,  74,  75,  76,  77,  78,  79,      /*  72 -  79 */
-  80,  81,  82,  83,  84,  85,  86,  87,      /*  80 -  87 */
-  88,  89,  90,  91,  92,  93,  94,  95,      /*  88 -  95 */
-  96,  97,  98,  99, 100, 101, 102, 103,      /*  96 - 103 */
-  104, 105, 106, 107, 108, 109, 110, 111,     /* 104 - 111 */
-  112, 113, 114, 115, 116, 117, 118, 119,     /* 112 - 119 */
-  120, 121, 122, 123, 124, 125, 126, 127,     /* 120 - 127 */
-  196, 197, 165, 201, 209, 247, 220, 225,     /* 128 - 135 */
-  224, 226, 228, 227, 198, 176, 170, 248,     /* 136 - 143 */
-  213, 206, 195, 207, 211, 212, 210, 219,     /* 144 - 151 */
-  218, 221, 246, 245, 250, 249, 251, 252,     /* 152 - 159 */
-  160, 193, 162, 163, 223, 180, 182, 164,     /* 160 - 167 */
-  172, 169, 187, 199, 194, 173, 168, 255,     /* 168 - 175 */
-  161, 177, 178, 179, 171, 181, 166, 183,     /* 176 - 183 */
-  184, 185, 188, 200, 186, 189, 202, 192,     /* 184 - 191 */
-  203, 231, 229, 204, 128, 129, 174, 130,     /* 192 - 199 */
-  233, 131, 230, 232, 237, 234, 235, 236,     /* 200 - 207 */
-  208, 132, 241, 238, 239, 205, 133, 215,     /* 208 - 215 */
-  175, 244, 242, 243, 134, 217, 222, 167,     /* 216 - 223 */
-  136, 135, 137, 139, 138, 140, 190, 141,     /* 224 - 231 */
-  143, 142, 144, 145, 147, 146, 148, 149,     /* 232 - 239 */
-  240, 150, 152, 151, 153, 155, 154, 214,     /* 240 - 247 */
-  191, 157, 156, 158, 159, 253, 254, 216,     /* 248 - 255 */
-};
-
-unsigned char Squeak_to_X[256];
-
-void initCharmap(void)
-{
-  int i;
-  for(i= 0; i < 256; i++)
-    Squeak_to_X[X_to_Squeak[i]]= i;
-}
-
-void st2ux(unsigned char *string)
-{
-  if (!string) return;
-  while (*string)
-    {
-     *string= Squeak_to_X[*string];
-      string++;
-    }
-}
-
-void ux2st(unsigned char *string)
-{
-  if (!string) return;
-  while (*string)
-    {
-      *string= X_to_Squeak[*string];
-      string++;
-    }
-}
-
-#endif
-
 /*** X-related Functions ***/
 
 /* Called prior to forking a squeak session.