code cleanup: remove unnecessary voice option translator

See commit message for 23a4d88f.

This commit fixes cmn and yue.
CalcPitches_Tone() now accepts cmn for translator_name.
SelectTranslator() now has a case for yue instead of zhy.

espeak-ng-data/lang/bat/ltg

 language ltg
 maintainer Valdis Vitolins <[email protected]>
 status testing
-translator lv // Reuse pronunciation rules from Latvian
 phonemes lv
 dictionary lv
 dictrules 2   // Setting for Latgalian pronunciation

espeak-ng-data/lang/poz/ms

 language ms
 phonemes id
 
-translator id
-
 stressLength 160 200  180 180  0 0  220 240
 stressAmp    16  18   18  18   0 0  22  21
 intonation	3	// Less intonation, and comma does not raise the pitch.

espeak-ng-data/lang/sit/cmn

 language zh-cmn
 language zh
 
-translator zh
 phonemes zh
 dictionary zh
 words 1

espeak-ng-data/lang/sit/hak

 language hak
 maintainer Chen Chien-ting <[email protected]>
 status testing
-translator hak
 phonemes hak
 dictionary hak

espeak-ng-data/lang/sit/yue

 language zh-yue
 language zh 8
 
-translator zhy
 phonemes zhy
 dictionary zhy
 

espeak-ng-data/voices/mb/mb-ma1

 gender female
 pitch 140 260
 phonemes id
-translator id
 mbrola ma1 ma1_phtrans
 

src/libespeak-ng/intonation.c

 				}
 			  }
 			// Mandarin
-			if (tr->translator_name == L('z', 'h')) {
+			if (tr->translator_name == L('z', 'h') || tr->translator_name == L3('c', 'm', 'n')) {
 				if (tone_ph == 0) {
 					if (pause || tone_promoted) {
 						tone_ph = PhonemeCode2('5', '5'); // no previous vowel, use tone 1

src/libespeak-ng/tr_languages.c

 	}
 		break;
 	case L('l', 'v'): // latvian
+	case L3('l', 't', 'g'): // latgalian
 	{
 		static const unsigned char stress_amps_lv[8] = { 14, 10, 10, 8, 0, 0, 20, 15 };
 		static const short stress_lengths_lv[8] = { 180, 180, 180, 160, 0, 0, 230, 180 };
 		tr->langopts.break_numbers = BREAK_INDIVIDUAL;
 		break;
 	case L3('c', 'm', 'n'): // no break, just go to 'zh' case
-	case L3('z', 'h', 'y'): // just go to 'zh' case
+	case L3('y', 'u', 'e'):
 	case L('z','h'):
 	{
 		static const short stress_lengths_zh[8] = { 230, 150, 230, 230, 230, 0, 240, 250 }; // 1=tone5. end-of-sentence, 6=tone 1&4, 7=tone 2&3
 		tr->langopts.ideographs = 1;
 		tr->langopts.our_alphabet = 0x3100;
 		tr->langopts.word_gap = 0x21; // length of a final vowel is less dependent on the next consonant, don't merge consonant with next word
-		if (name2 == L3('z', 'h', 'y')) {
+		if (name2 == L3('y', 'u', 'e')) {
 			tr->langopts.textmode = true;
 			tr->langopts.listx = 1; // compile zh_listx after zh_list
 			tr->langopts.numbers = NUM_DEFAULT;

src/libespeak-ng/voices.c

 	V_NAME = 1,
 	V_LANGUAGE,
 	V_GENDER,
-	V_TRANSLATOR,
 	V_PHONEMES,
 	V_DICTIONARY,
 	V_VARIANTS,
 	{ "formant",      V_FORMANT },
 	{ "pitch",        V_PITCH },
 	{ "phonemes",     V_PHONEMES },
-	{ "translator",   V_TRANSLATOR },
 	{ "dictionary",   V_DICTIONARY },
 	{ "stressLength", V_STRESSLENGTH },
 	{ "stressAmp",    V_STRESSAMP },
 			current_voice_selected.age = age;
 		}
 			break;
-		case V_TRANSLATOR:
-			if (tone_only) break;
-
-			sscanf(p, "%s", translator_name);
-
-			if (new_translator != NULL)
-				DeleteTranslator(new_translator);
-
-			new_translator = SelectTranslator(translator_name);
-			langopts = &new_translator->langopts;
-			break;
 		case V_DICTIONARY: // dictionary
 			sscanf(p, "%s", new_dictionary);
 			break;