diff --git a/application/src/main/java/org/thingsboard/server/controller/ControllerConstants.java b/application/src/main/java/org/thingsboard/server/controller/ControllerConstants.java
index bbd2773e6b..7701a19f02 100644
--- a/application/src/main/java/org/thingsboard/server/controller/ControllerConstants.java
+++ b/application/src/main/java/org/thingsboard/server/controller/ControllerConstants.java
@@ -15,16 +15,6 @@
  */
 package org.thingsboard.server.controller;
 
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Paths;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import static org.thingsboard.server.common.msg.EncryptionUtil.certTrimNewLinesForChainInDeviceProfile;
-
 public class ControllerConstants {
 
     protected static final String NEW_LINE = "\n\n";
@@ -246,17 +236,6 @@ public class ControllerConstants {
                     "   }\n" +
                     "}";
 
-    protected static final String[] getCertificateValue() {
-        String filePath = "src/test/resources/provision/x509ChainProvisionTest.pem";
-        try {
-            String certificateChain = Files.readString(Paths.get(filePath));
-            certificateChain = certTrimNewLinesForChainInDeviceProfile(certificateChain);
-            return fetchLeafCertificateFromChain(certificateChain);
-        } catch (IOException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
     protected static final String certificateValue = "\"-----BEGIN CERTIFICATE----- " +
         "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 " +
         "-----END CERTIFICATE-----\"";
@@ -1662,15 +1641,4 @@ public class ControllerConstants {
             MARKDOWN_CODE_BLOCK_START +
             "[{\"ts\":1634712287000,\"values\":{\"temperature\":26, \"humidity\":87}}, {\"ts\":1634712588000,\"values\":{\"temperature\":25, \"humidity\":88}}]" +
             MARKDOWN_CODE_BLOCK_END ;
-
-    private static String[] fetchLeafCertificateFromChain(String value) {
-        List<String> chain = new ArrayList<>();
-        String regex = "-----BEGIN CERTIFICATE-----\\s*.*?\\s*-----END CERTIFICATE-----";
-        Pattern pattern = Pattern.compile(regex);
-        Matcher matcher = pattern.matcher(value);
-        while (matcher.find()) {
-            chain.add(matcher.group(0));
-        }
-        return chain.toArray(new String[0]);
-    }
 }