Revert 232412 "Implement Google network speech synthesis."

chrome/common/extensions/api/speech/tts_engine_manifest_handler.cc

Index: chrome/common/extensions/api/speech/tts_engine_manifest_handler.cc
===================================================================
--- chrome/common/extensions/api/speech/tts_engine_manifest_handler.cc	(revision 235463)
+++ chrome/common/extensions/api/speech/tts_engine_manifest_handler.cc	(working copy)
@@ -29,8 +29,7 @@
 
 }  // namespace
 
-TtsVoice::TtsVoice() : remote(false) {}
-
+TtsVoice::TtsVoice() {}
 TtsVoice::~TtsVoice() {}
 
 // static
@@ -96,13 +95,6 @@
         return false;
       }
     }
-    if (one_tts_voice->HasKey(keys::kTtsVoicesRemote)) {
-      if (!one_tts_voice->GetBoolean(
-              keys::kTtsVoicesRemote, &voice_data.remote)) {
-        *error = ASCIIToUTF16(errors::kInvalidTtsVoicesRemote);
-        return false;
-      }
-    }
     if (one_tts_voice->HasKey(keys::kTtsVoicesEventTypes)) {
       const base::ListValue* event_types_list;
       if (!one_tts_voice->GetList(