diff --git a/src/core/server/logging/appenders/appenders.ts b/src/core/server/logging/appenders/appenders.ts
index 871acb8c465ca..3aa86495e4d82 100644
--- a/src/core/server/logging/appenders/appenders.ts
+++ b/src/core/server/logging/appenders/appenders.ts
@@ -42,12 +42,6 @@ export type AppenderConfigType = TypeOf<typeof appendersSchema>;
  */
 export interface Appender {
   append(record: LogRecord): void;
-
-  /**
-   * Used to signal to `Logger` that log level filtering should be ignored for this appender. Defaults to `false`.
-   * @deprecated Should be removed once the `LegacyAppender` is removed.
-   */
-  receiveAllLevels?: boolean;
 }
 
 /**
diff --git a/src/core/server/logging/logger.test.ts b/src/core/server/logging/logger.test.ts
index eeebb8ad5a0fa..026e24fc5df54 100644
--- a/src/core/server/logging/logger.test.ts
+++ b/src/core/server/logging/logger.test.ts
@@ -410,85 +410,3 @@ test('passes log record to appenders only if log level is supported.', () => {
     });
   }
 });
-
-test('passes log record to appender with receiveAllLevels: true, regardless if log level is supported', () => {
-  const receiveAllAppender = { append: jest.fn(), receiveAllLevels: true };
-  const warnLogger = new BaseLogger(context, LogLevel.Warn, [receiveAllAppender], factory);
-
-  warnLogger.trace('trace-message');
-  expect(receiveAllAppender.append).toHaveBeenCalledTimes(1);
-  expect(receiveAllAppender.append.mock.calls[0][0]).toMatchObject({
-    level: LogLevel.Trace,
-    message: 'trace-message',
-  });
-
-  warnLogger.debug('debug-message');
-  expect(receiveAllAppender.append).toHaveBeenCalledTimes(2);
-  expect(receiveAllAppender.append.mock.calls[1][0]).toMatchObject({
-    level: LogLevel.Debug,
-    message: 'debug-message',
-  });
-
-  warnLogger.info('info-message');
-  expect(receiveAllAppender.append).toHaveBeenCalledTimes(3);
-  expect(receiveAllAppender.append.mock.calls[2][0]).toMatchObject({
-    level: LogLevel.Info,
-    message: 'info-message',
-  });
-
-  warnLogger.warn('warn-message');
-  expect(receiveAllAppender.append).toHaveBeenCalledTimes(4);
-  expect(receiveAllAppender.append.mock.calls[3][0]).toMatchObject({
-    level: LogLevel.Warn,
-    message: 'warn-message',
-  });
-
-  warnLogger.error('error-message');
-  expect(receiveAllAppender.append).toHaveBeenCalledTimes(5);
-  expect(receiveAllAppender.append.mock.calls[4][0]).toMatchObject({
-    level: LogLevel.Error,
-    message: 'error-message',
-  });
-
-  warnLogger.fatal('fatal-message');
-  expect(receiveAllAppender.append).toHaveBeenCalledTimes(6);
-  expect(receiveAllAppender.append.mock.calls[5][0]).toMatchObject({
-    level: LogLevel.Fatal,
-    message: 'fatal-message',
-  });
-});
-
-test('passes log record to appender with receiveAllLevels: false, only if log level is supported', () => {
-  const notReceiveAllAppender = { append: jest.fn(), receiveAllLevels: false };
-  const warnLogger = new BaseLogger(context, LogLevel.Warn, [notReceiveAllAppender], factory);
-
-  warnLogger.trace('trace-message');
-  expect(notReceiveAllAppender.append).toHaveBeenCalledTimes(0);
-
-  warnLogger.debug('debug-message');
-  expect(notReceiveAllAppender.append).toHaveBeenCalledTimes(0);
-
-  warnLogger.info('info-message');
-  expect(notReceiveAllAppender.append).toHaveBeenCalledTimes(0);
-
-  warnLogger.warn('warn-message');
-  expect(notReceiveAllAppender.append).toHaveBeenCalledTimes(1);
-  expect(notReceiveAllAppender.append.mock.calls[0][0]).toMatchObject({
-    level: LogLevel.Warn,
-    message: 'warn-message',
-  });
-
-  warnLogger.error('error-message');
-  expect(notReceiveAllAppender.append).toHaveBeenCalledTimes(2);
-  expect(notReceiveAllAppender.append.mock.calls[1][0]).toMatchObject({
-    level: LogLevel.Error,
-    message: 'error-message',
-  });
-
-  warnLogger.fatal('fatal-message');
-  expect(notReceiveAllAppender.append).toHaveBeenCalledTimes(3);
-  expect(notReceiveAllAppender.append.mock.calls[2][0]).toMatchObject({
-    level: LogLevel.Fatal,
-    message: 'fatal-message',
-  });
-});
diff --git a/src/core/server/logging/logger.ts b/src/core/server/logging/logger.ts
index ab6906ff5d684..99a2014be97c1 100644
--- a/src/core/server/logging/logger.ts
+++ b/src/core/server/logging/logger.ts
@@ -139,7 +139,7 @@ export class BaseLogger implements Logger {
     const supportedLevel = this.level.supports(record.level);
 
     for (const appender of this.appenders) {
-      if (supportedLevel || appender.receiveAllLevels) {
+      if (supportedLevel) {
         appender.append(record);
       }
     }