fix: linter

Author: NguyenHoangSon96

examples/src/main/java/com/influxdb/v3/ProxyExample.java

@@ -21,14 +21,8 @@
  */
 package com.influxdb.v3;
 
-import java.net.InetSocketAddress;
-import java.net.ProxySelector;
-import java.net.URI;
 import java.util.stream.Stream;
 
-import io.grpc.HttpConnectProxiedSocketAddress;
-import io.grpc.ProxyDetector;
-
 import com.influxdb.v3.client.InfluxDBClient;
 import com.influxdb.v3.client.Point;
 import com.influxdb.v3.client.PointValues;