Remove definitions for towlower/towupper

The definitions for towlower() and towupper() are defined in /usr/include/wctype.h on FreeBSD platforms. I just removed the define and used  the ucd_ equivilent where towlower/towupper were found.

/bin/sh ./libtool  --tag=CC   --mode=compile cc -DHAVE_CONFIG_H -I.    -fPIC -fvisibility=hidden -pedantic -fno-exceptions -D PATH_ESPEAK_DATA=\"/usr/local/share/espeak-
ng-data\" -DLIBESPEAK_NG_EXPORT  -Isrc/include -Isrc/include/compat -I src/ucd-tools/src/include -D_BSD_SOURCE -D_DEFAULT_SOURCE -D_POSIX_C_SOURCE=200112L -Wno-endif-lab
els    -g -O2 -std=c99 -MT src/libespeak-ng/src_libespeak_ng_la-readclause.lo -MD -MP -MF src/libespeak-ng/.deps/src_libespeak_ng_la-readclause.Tpo -c -o src/libespeak-n
g/src_libespeak_ng_la-readclause.lo `test -f 'src/libespeak-ng/readclause.c' || echo './'`src/libespeak-ng/readclause.c
libtool: compile:  cc -DHAVE_CONFIG_H -I. -fPIC -fvisibility=hidden -pedantic -fno-exceptions -D PATH_ESPEAK_DATA=\"/usr/local/share/espeak-ng-data\" -DLIBESPEAK_NG_EXPO
RT -Isrc/include -Isrc/include/compat -I src/ucd-tools/src/include -D_BSD_SOURCE -D_DEFAULT_SOURCE -D_POSIX_C_SOURCE=200112L -Wno-endif-labels -g -O2 -std=c99 -MT src/li
bespeak-ng/src_libespeak_ng_la-readclause.lo -MD -MP -MF src/libespeak-ng/.deps/src_libespeak_ng_la-readclause.Tpo -c src/libespeak-ng/readclause.c  -fPIC -DPIC -o src/l
ibespeak-ng/.libs/src_libespeak_ng_la-readclause.o
In file included from src/libespeak-ng/readclause.c:32:
In file included from src/include/compat/wctype.h:30:
/usr/include/wctype.h:73:8: error: conflicting types for 'ucd_tolower'
wint_t  towlower(wint_t);
        ^
src/include/compat/wchar.h:37:18: note: expanded from macro 'towlower'
                 ^
src/ucd-tools/src/include/ucd/ucd.h:503:13: note: previous declaration is here
codepoint_t ucd_tolower(codepoint_t c);
            ^
In file included from src/libespeak-ng/readclause.c:32:
In file included from src/include/compat/wctype.h:30:
/usr/include/wctype.h:74:8: error: conflicting types for 'ucd_toupper'
wint_t  towupper(wint_t);
        ^
src/include/compat/wchar.h:38:18: note: expanded from macro 'towupper'
                 ^
src/ucd-tools/src/include/ucd/ucd.h:491:13: note: previous declaration is here
codepoint_t ucd_toupper(codepoint_t c);
            ^
src/libespeak-ng/readclause.c:366:19: warning: implicit declaration of function 'mkstemp' is invalid in C99 [-Wimplicit-function-declaration]
                        if ((fd_temp = mkstemp(fname_temp)) >= 0)
                                       ^
1 warning and 2 errors generated.

src/include/compat/wchar.h

 
 #include <ucd/ucd.h>
 
-#define towlower ucd_tolower
-#define towupper ucd_toupper
-
 #endif

src/libespeak-ng/readclause.c

 	if (c == 'I' && translator->langopts.dotless_i)
 		return 0x131; // I -> ı
 
-	return towlower(c);
+	return ucd_tolower(c);
 }
 
 static int IsRomanU(unsigned int c)
 
 	while (IsDigit09(*pw))
 		value = value*10 + *pw++ - '0';
-	if ((type == 1) && (towlower(*pw) == 's')) {
+	if ((type == 1) && (ucd_tolower(*pw) == 's')) {
 		// time: seconds rather than ms
 		value *= 1000;
 	}

src/libespeak-ng/translate.c

 		// don't convert the case of the second character unless the next letter is also upper case
 		c2 = new_c >> 16;
 		if (upper_case && iswupper(next_in))
-			c2 = towupper(c2);
+			c2 = ucd_toupper(c2);
 		*insert = c2;
 		new_c &= 0xffff;
 	}
 
 	if (upper_case)
-		new_c = towupper(new_c);
+		new_c = ucd_toupper(new_c);
 
 	*wordflags |= FLAG_CHAR_REPLACED;
 	return new_c;

src/ucd-tools/tests/printcdata.c

 			uprintf_is(out, c, *++format);
 			break;
 		case 'L': /* lowercase */
-			uprintf_codepoint(out, towlower(c), *++format);
+			uprintf_codepoint(out, ucd_tolower(c), *++format);
 			break;
 		case 's': /* script */
 			fputs(ucd_get_script_string(ucd_lookup_script(c)), out);
 			uprintf_codepoint(out, ucd_totitle(c), *++format);
 			break;
 		case 'U': /* uppercase */
-			uprintf_codepoint(out, towupper(c), *++format);
+			uprintf_codepoint(out, ucd_toupper(c), *++format);
 			break;
 		}
 		++format;