[fix][broker] Revert "Skip loading broker interceptor when disableBrokerInterceptors is true #20422" (#20710)

diff --git a/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/ServiceConfiguration.java b/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/ServiceConfiguration.java
index b41a562..1a0ee2c 100644
--- a/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/ServiceConfiguration.java
+++ b/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/ServiceConfiguration.java
@@ -1356,7 +1356,7 @@
 
     @FieldContext(
         category = CATEGORY_SERVER,
-        doc = "Enable or disable the broker interceptor"
+        doc = "Enable or disable the broker interceptor, which is only used for testing for now"
     )
     private boolean disableBrokerInterceptors = true;
 
diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/broker/intercept/BrokerInterceptors.java b/pulsar-broker/src/main/java/org/apache/pulsar/broker/intercept/BrokerInterceptors.java
index 4ffd873..cef3f0e 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/broker/intercept/BrokerInterceptors.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/broker/intercept/BrokerInterceptors.java
@@ -59,11 +59,6 @@
      * @return the collection of broker event interceptor
      */
     public static BrokerInterceptor load(ServiceConfiguration conf) throws IOException {
-        if (conf.isDisableBrokerInterceptors()) {
-            log.info("Skip loading the broker interceptors when disableBrokerInterceptors is true");
-            return null;
-        }
-
         BrokerInterceptorDefinitions definitions =
                 BrokerInterceptorUtils.searchForInterceptors(conf.getBrokerInterceptorsDirectory(),
                         conf.getNarExtractionDirectory());
diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/BrokerInterceptorTest.java b/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/BrokerInterceptorTest.java
index c612104..d1cf916 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/BrokerInterceptorTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/BrokerInterceptorTest.java
@@ -20,12 +20,9 @@
 
 import static org.mockito.ArgumentMatchers.same;
 import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.testng.Assert.assertEquals;
-import static org.testng.Assert.assertNull;
-
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -39,7 +36,6 @@
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
 import okhttp3.Response;
-import org.apache.pulsar.broker.ServiceConfiguration;
 import org.apache.pulsar.broker.testcontext.PulsarTestContext;
 import org.apache.pulsar.client.admin.PulsarAdminException;
 import org.apache.pulsar.client.api.Consumer;
@@ -311,25 +307,4 @@
         }
     }
 
-    @Test
-    public void testLoadWhenDisableBrokerInterceptorsIsTrue() throws IOException {
-        ServiceConfiguration serviceConfiguration = spy(ServiceConfiguration.class);
-        serviceConfiguration.setDisableBrokerInterceptors(true);
-        BrokerInterceptor brokerInterceptor = BrokerInterceptors.load(serviceConfiguration);
-        assertNull(brokerInterceptor);
-
-        verify(serviceConfiguration, times(1)).isDisableBrokerInterceptors();
-        verify(serviceConfiguration, times(0)).getBrokerInterceptorsDirectory();
-    }
-
-    @Test
-    public void testLoadWhenDisableBrokerInterceptorsIsFalse() throws IOException {
-        ServiceConfiguration serviceConfiguration = spy(ServiceConfiguration.class);
-        serviceConfiguration.setDisableBrokerInterceptors(false);
-        BrokerInterceptor brokerInterceptor = BrokerInterceptors.load(serviceConfiguration);
-        assertNull(brokerInterceptor);
-
-        verify(serviceConfiguration, times(1)).isDisableBrokerInterceptors();
-        verify(serviceConfiguration, times(1)).getBrokerInterceptorsDirectory();
-    }
 }