Image Capture PPAPI: remove unused APIs

ppapi/thunk/ppb_image_capture_api.h

Index: ppapi/thunk/ppb_image_capture_api.h
diff --git a/ppapi/thunk/ppb_image_capture_api.h b/ppapi/thunk/ppb_image_capture_api.h
index 754504d32b339bb7dfcf89f0915abdf44c4aade2..b6b0409dd6e4f62a2b08ebf0b4140de761e95460 100644
--- a/ppapi/thunk/ppb_image_capture_api.h
+++ b/ppapi/thunk/ppb_image_capture_api.h
@@ -21,18 +21,9 @@ class PPB_ImageCapture_API {
   virtual int32_t Open(PP_Var camera_source_id,
                        scoped_refptr<TrackedCallback> callback) = 0;
   virtual void Close() = 0;
-  virtual int32_t SetConfig(PP_Resource config,
-                            scoped_refptr<TrackedCallback> callback) = 0;
-  virtual int32_t GetConfig(PP_Resource* config,
-                            scoped_refptr<TrackedCallback> callback) = 0;
   virtual int32_t GetCameraCapabilities(
       PP_Resource* capabilities,
       scoped_refptr<TrackedCallback> callback) = 0;
-  virtual int32_t CaptureStillImage(
-      PPB_ImageCapture_Private_ShutterCallback shutter_callback,
-      PPB_ImageCapture_Private_PreviewCallback preview_callback,
-      PPB_ImageCapture_Private_JpegCallback jpeg_callback,
-      int64_t* sequence_id) = 0;
 };
 
 }  // namespace thunk