chore(VR): remove adpater files

Author: ehdsouza

watson_developer_cloud/__init__.py

@@ -33,5 +33,3 @@
 from .version import __version__
 from .speech_to_text_v1_adapter import SpeechToTextV1Adapter as SpeechToTextV1
 from .text_to_speech_adapter_v1 import TextToSpeechV1Adapter as TextToSpeechV1
-from .visual_recognition_v3_adapter import VisualRecognitionV3Adapter as VisualRecognitionV3
-from .discovery_v1_adapter import DiscoveryV1Adapter as DiscoveryV1