remove @Alpha from remote config since docs are published

Author: colerogers

src/v2/providers/remoteConfig.ts

@@ -90,7 +90,6 @@ export interface ConfigUpdateData {
  *
  * @param handler - Event handler which is run every time a Remote Config update occurs.
  * @returns A Cloud Function that you can export and deploy.
- * @alpha
  */
 export function onConfigUpdated(
   handler: (event: CloudEvent<ConfigUpdateData>) => any | Promise<any>
@@ -102,7 +101,6 @@ export function onConfigUpdated(
  * @param opts - Options that can be set on an individual event-handling function.
  * @param handler - Event handler which is run every time a Remote Config update occurs.
  * @returns A Cloud Function that you can export and deploy.
- * @alpha
  */
 export function onConfigUpdated(
   opts: EventHandlerOptions,
@@ -115,7 +113,6 @@ export function onConfigUpdated(
  * @param optsOrHandler - Options or an event handler.
  * @param handler - Event handler which is run every time a Remote Config update occurs.
  * @returns A Cloud Function that you can export and deploy.
- * @alpha
  */
 export function onConfigUpdated(
   optsOrHandler: