PLT-4853 Adding cache purging to the server (server) (#4735)

* PLT-4853 Adding caching invalidation to HA

* PLT-4853 Adding cach purging to the server

api/oauth.go

@@ -251,8 +251,8 @@ func getAuthorizedApps(c *Context, w http.ResponseWriter, r *http.Request) {
 
 func RevokeAccessToken(token string) *model.AppError {
 
+	session := GetSession(token)
 	schan := Srv.Store.Session().Remove(token)
-	sessionCache.Remove(token)
 
 	if result := <-Srv.Store.OAuth().GetAccessData(token); result.Err != nil {
 		return model.NewLocAppError("RevokeAccessToken", "api.oauth.revoke_access_token.get.app_error", nil, "")
@@ -268,6 +268,10 @@ func RevokeAccessToken(token string) *model.AppError {
 		return model.NewLocAppError("RevokeAccessToken", "api.oauth.revoke_access_token.del_session.app_error", nil, "")
 	}
 
+	if session != nil {
+		RemoveAllSessionsForUserId(session.UserId)
+	}
+
 	return nil
 }