code cleanup: remove unnecessary voice option translator

Option "language <name>"already causes SelectTranslator(<name>) to be
called. Having two options to do almost the same thing is unnecessary
and confusing.

In the long term, all options from SelectTranslator() should have a
switch case in LoadVoice() so they are user configurable (see #218). If
needed, a new option (maybe called "LoadOptions") could be added to load
an existing voice or language file.

Changes language configuration files for: hak, cmn, yue, ltg, ms, mb-ma1.
No changes to users.

src/libespeak-ng/tr_languages.c

@@ -1169,6 +1169,7 @@ Translator *SelectTranslator(const char *name)
 	}
 		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 };

src/libespeak-ng/voices.c

@@ -72,7 +72,6 @@ enum {
 	V_NAME = 1,
 	V_LANGUAGE,
 	V_GENDER,
-	V_TRANSLATOR,
 	V_PHONEMES,
 	V_DICTIONARY,
 	V_VARIANTS,
@@ -127,7 +126,6 @@ static MNEM_TAB keyword_tab[] = {
 	{ "formant",      V_FORMANT },
 	{ "pitch",        V_PITCH },
 	{ "phonemes",     V_PHONEMES },
-	{ "translator",   V_TRANSLATOR },
 	{ "dictionary",   V_DICTIONARY },
 	{ "stressLength", V_STRESSLENGTH },
 	{ "stressAmp",    V_STRESSAMP },
@@ -649,17 +647,6 @@ voice_t *LoadVoice(const char *vname, int control)
 			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;