public void triggerRemoveOne(final String selectorId, final Upstream upstream) {
        removeFromMap(healthyUpstream, selectorId, upstream);
        removeFromMap(unhealthyUpstream, selectorId, upstream);
    }
Remove a specific upstream via selectorId.

@param selectorId selectorId
@param upstream upstream
shenyu-loadbalancer/src/main/java/org/apache/shenyu/loadbalancer/cache/UpstreamCheckTask.java