Removes sandwich bot

Composer/packages/lib/shared/src/dialogFactory.ts

@@ -72,6 +72,21 @@ export const seedDefaults = (type: string) => {
   return assignDefaults(properties);
 };
 
+const DEEP_COPY_TYPES = ['Microsoft.SendActivity'];
+export const needsDeepCopy = $type => {
+  return DEEP_COPY_TYPES.indexOf($type) !== -1;
+};
+
+export const deepCopy: any = (_data, _lgApi) => {
+  // data.type is a SendActivity
+  // data.id is bound to copied SendActivity
+  // new id getDesignerId()
+  // data.activity references an LG template
+  // make new LG template based off of naming schema
+  // assign to data.activity
+  return undefined;
+};
+
 export const seedNewDialog = (
   $type: string,
   designerAttributes: Partial<DesignerAttributes> = {},