Removed BytePrinter

Usages replaced with `io.netty.buffer.ByteBufUtil`.

Author: lutovich

driver/src/main/java/org/neo4j/driver/internal/security/TrustOnFirstUseTrustManager.java

@@ -18,6 +18,8 @@
  */
 package org.neo4j.driver.internal.security;
 
+import io.netty.buffer.ByteBufUtil;
+
 import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.File;
@@ -31,7 +33,6 @@
 import javax.net.ssl.X509TrustManager;
 
 import org.neo4j.driver.internal.BoltServerAddress;
-import org.neo4j.driver.internal.util.BytePrinter;
 import org.neo4j.driver.v1.Logger;
 
 import static java.lang.String.format;
@@ -202,7 +203,7 @@ public static String fingerprint( X509Certificate cert ) throws CertificateExcep
         {
             MessageDigest md = MessageDigest.getInstance( "SHA-512" );
             md.update( cert.getEncoded() );
-            return BytePrinter.compactHex( md.digest() );
+            return ByteBufUtil.hexDump( md.digest() );
         }
         catch( NoSuchAlgorithmException e )
         {

driver/src/main/java/org/neo4j/driver/internal/util/BytePrinter.java

@@ -18,7 +18,6 @@
  */
 package org.neo4j.driver.internal.packstream;
 
-import org.hamcrest.MatcherAssert;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
@@ -34,8 +33,6 @@
 import java.util.LinkedHashMap;
 import java.util.Map;
 
-import org.neo4j.driver.internal.util.BytePrinter;
-
 import static java.nio.charset.StandardCharsets.UTF_8;
 import static java.util.Arrays.asList;
 import static org.hamcrest.CoreMatchers.equalTo;
@@ -467,8 +464,6 @@ public void testCanPackAndUnpackSpecialStringFromBytes() throws Throwable
         PackStream.Packer packer = machine.packer();
 
         byte[] bytes = code.getBytes( UTF_8 );
-        MatcherAssert.assertThat( BytePrinter.hex( bytes ).trim(), equalTo( "4d 6a c3 b6 6c 6e 69 72" ) );
-        assertThat( new String( bytes, UTF_8 ), equalTo( code ) );
 
         packer.packString( bytes );