fix tts stt langs and voices when credential is provided (#282)

lib/utils/speech-utils.js

@@ -535,11 +535,7 @@ async function getLanguagesVoicesForCobalt(credential) {
 }
 
 async function getLanguagesVoicesForSoniox(credential) {
-  if (credential) {
-
-  } else {
-    return tranform(undefined, SttSonioxLanguagesVoices);
-  }
+  return tranform(undefined, SttSonioxLanguagesVoices);
 }
 
 async function getLanguagesVoicesForElevenlabs(credential) {
@@ -585,19 +581,11 @@ async function getLanguagesVoicesForElevenlabs(credential) {
 }
 
 async function getLanguagesVoicesForAssemblyAI(credential) {
-  if (credential) {
-
-  } else {
-    return tranform(undefined, SttAssemblyaiLanguagesVoices);
-  }
+  return tranform(undefined, SttAssemblyaiLanguagesVoices);
 }
 
 async function getLanguagesVoicesForWhisper(credential) {
-  if (credential) {
-
-  } else {
-    return tranform(TtsWhisperLanguagesVoices, undefined, TtsModelWhisper);
-  }
+  return tranform(TtsWhisperLanguagesVoices, undefined, TtsModelWhisper);
 }
 
 function tranform(tts, stt, models) {