Remove the wchar tables from readclause, now the standard is* and to* APIs are being used.

src/libespeak-ng/readclause.c

 	0,   // voice type
 };
 
-// additional Latin characters beyond the ascii character set
-#define MAX_WALPHA  0x24f
-// indexed by character - 0x80
-// 0=not alphabetic, 0xff=lower case, 0xfe=no case, 0xfd=use wchar_tolower
-//   other=value to add to upper case to convert to lower case
-static unsigned char walpha_tab[MAX_WALPHA-0x7f] = {
-	   0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0, // 080
-	   0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0, // 090
-	   0,    0,    0,    0,    0,    0,    0,    0,    0,    0, 0xfe,    0,    0,    0,    0,    0, // 0a0
-	   0,    0,    0,    0,    0, 0xff,    0,    0,    0,    0, 0xfe,    0,    0,    0,    0,    0, // 0b0
-	  32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32, // 0c0
-	  32,   32,   32,   32,   32,   32,   32,    0,   32,   32,   32,   32,   32,   32,   32, 0xff, // 0d0
-	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // 0e0
-	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,    0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // 0f0
-	   1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, // 100
-	   1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, // 110
-	   1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, // 120
-	0xfd, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, 0xfe,    1, 0xff,    1, 0xff,    1, 0xff,    1, // 130
-	0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, 0xfe,    1, 0xff,    1, 0xff,    1, 0xff, // 140
-	   1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, // 150
-	   1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, // 160
-	   1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, 0xfd,    1, 0xff,    1, 0xff,    1, 0xff, 0xff, // 170
-	0xff,  210,    1, 0xff,    1, 0xff,  206,    1, 0xff,  205,  205,    1, 0xff, 0xfe,   79,  202, // 180
-	 203,    1, 0xff,  205,  207, 0xff,  211,  209,    1, 0xff, 0xff, 0xfe,  211,  213, 0xff,  214, // 190
-	   1, 0xff,    1, 0xff,    1, 0xff,  218,    1, 0xff,  218, 0xfe, 0xfe,    1, 0xff,  218,    1, // 1a0
-	0xff,  217,  217,    1, 0xff,    1, 0xff,  219,    1, 0xff, 0xfe, 0xfe,    1, 0xff, 0xfe, 0xff, // 1b0
-	0xfe, 0xfe, 0xfe, 0xfe,    2, 0xff, 0xff,    2, 0xff, 0xff,    2, 0xff, 0xff,    1, 0xff,    1, // 1c0
-	0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, 0xff,    1, 0xff, // 1d0
-	   1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, // 1e0
-	0xfe,    2, 0xff, 0xff,    1, 0xff, 0xfd, 0xfd,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, // 1f0
-	   1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, // 200
-	   1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, // 210
-	0xfd, 0xfe,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff, // 220
-	   1, 0xff,    1, 0xff, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfd,    1, 0xff, 0xfd, 0xfd, 0xfe, // 230
-	0xfe,    1, 0xff, 0xfd,   69,   71,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff,    1, 0xff  // 240
-};
-
-static const short wchar_tolower[] = {
-	0x130, 0x069,
-	0x178, 0x0ff,
-	0x1f6, 0x195,
-	0x1f7, 0x1bf,
-	0x220, 0x19e,
-	0x23a, 0x2c65,
-	0x23d, 0x19a,
-	0x23e, 0x2c66,
-	0x243, 0x180,
-	0, 0
-};
-
-static const short wchar_toupper[] = {
-	0x0b5, 0x39c,
-	0x0df, 0x0df,
-	0x0ff, 0x178,
-	0x131, 0x049,
-	0x17f, 0x053,
-	0x180, 0x243,
-	0x195, 0x1f6,
-	0x19a, 0x23d,
-	0x19e, 0x220,
-	0x1bf, 0x1f7,
-	0x1c6, 0x1c4,
-	0x1c9, 0x1c7,
-	0x1cc, 0x1ca,
-	0x1dd, 0x18e,
-	0x1f3, 0x1f1,
-	0, 0
-};
-
 int towlower2(unsigned int c)
 {
 	// check for non-standard upper to lower case conversions