removed useNewImpl from examples

Author: chernser

examples/client-v2/src/main/java/com/clickhouse/examples/client_v2/BigDatasetExamples.java

@@ -40,7 +40,6 @@ void readBigSetOfNumbers(int limit, int iterations, int concurrency) {
                 .compressServerResponse(false)
                 .compressClientRequest(false)
                 .setLZ4UncompressedBufferSize(1048576)
-                .useNewImplementation(true)
                 // when network buffer and socket buffer are the same size - it is less IO calls and more efficient
                 .setSocketRcvbuf(1_000_000)
                 .setClientNetworkBufferSize(1_000_000)

examples/demo-kotlin-service/src/main/kotlin/com/clickhouse/examples/service/Database.kt

@@ -13,7 +13,6 @@ object Database {
             .addEndpoint(dbUrl)
             .setUsername(dbUser)
             .setPassword(dbPassword)
-            .useNewImplementation(true)
             .build()
     }