fix!: remove unused proto InputText, InputAudio (#796)

Committer: @sheimi
PiperOrigin-RevId: 367294563

Source-Author: Google APIs <noreply@google.com>
Source-Date: Wed Apr 7 14:09:22 2021 -0700
Source-Repo: googleapis/googleapis
Source-Sha: 05958a4be99ee175858e14dbba580faa18079b07
Source-Link: googleapis/googleapis@05958a4

Co-authored-by: Benjamin E. Coe <bencoe@google.com>

protos/google/cloud/dialogflow/v2beta1/participant.proto

@@ -373,29 +373,6 @@ message UpdateParticipantRequest {
   google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
 }
 
-// Represents the natural language text to be processed.
-message InputText {
-  // Required. The UTF-8 encoded natural language text to be processed.
-  // Text length must not exceed 256 bytes.
-  string text = 1;
-
-  // Required. The language of this conversational query. See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
-  // for a list of the currently supported language codes.
-  string language_code = 2;
-}
-
-// Represents the natural language speech audio to be processed.
-message InputAudio {
-  // Required. Instructs the speech recognizer how to process the speech audio.
-  InputAudioConfig config = 1;
-
-  // Required. The natural language speech audio to be processed.
-  // A single request can contain up to 1 minute of speech audio data.
-  // The transcribed text cannot contain more than 256 bytes.
-  bytes audio = 2;
-}
-
 // Represents the natural language speech audio to be played to the end user.
 message OutputAudio {
   // Required. Instructs the speech synthesizer how to generate the speech