Remove old redact snippet and move region tags.

Author: kurtisvg

dlp/src/main/java/com/example/dlp/Redact.java

@@ -218,7 +218,7 @@ public static void main(String[] args) throws Exception {
       cmd = parser.parse(commandLineOptions, args);
     } catch (ParseException e) {
       System.out.println(e.getMessage());
-      formatter.printHelp(Redact.class.getName(), commandLineOptions);
+      formatter.printHelp("dlp_snippets", commandLineOptions);
       System.exit(1);
       return;
     }

dlp/src/main/java/com/example/dlp/Templates.java

@@ -16,6 +16,7 @@
 
 package dlp.snippets;
 
+// [START dlp_redact_image]
 import com.google.cloud.dlp.v2.DlpServiceClient;
 import com.google.privacy.dlp.v2.ByteContentItem;
 import com.google.privacy.dlp.v2.ByteContentItem.BytesType;
@@ -84,3 +85,4 @@ static void redactImageFile(String projectId, String filePath) {
     }
   }
 }
+// [END dlp_redact_image]

dlp/src/main/java/dlp/snippets/RedactImageFile.java

@@ -16,6 +16,7 @@
 
 package dlp.snippets;
 
+// [START dlp_redact_image]
 import static junit.framework.TestCase.assertNotNull;
 import static org.junit.Assert.assertThat;