INAPP-13325 - Remove unused messageVisible event (#53)

Author: jdcantrell

packages/browser/src/plugins/in-app-plugin/events.ts

@@ -3,7 +3,6 @@ export enum InAppEvents {
     MessageDismissed =  'in-app:message-dismissed',
     MessageError = 'in-app:message-error',
     MessageAction = 'in-app:message-action',
-    MessageVisible = 'in-app:message-visible'
 }
 
 export const allEvents:string[] = Object.values(InAppEvents);
@@ -33,8 +32,6 @@ export function gistToCIO(gistEvent:string): string {
             return InAppEvents.MessageError;
         case 'messageAction':
             return InAppEvents.MessageAction;
-        case 'messageVisible':
-            return InAppEvents.MessageVisible;
         default:
             return "";
     }