Update mmv1/products/dialogflow/Environment.yaml

Co-authored-by: Nick Elliot <nickelliot@google.com>

Author: Spheny1

mmv1/products/dialogflow/Environment.yaml

@@ -100,7 +100,6 @@ properties:
           language to SynthesizeSpeechConfig.
         key_name: language
         value_type:
-          name: synthesizeSpeechConfig
           type: NestedObject
           properties:
             - type: Double