diff --git a/platform/platform-api/src/com/intellij/testFramework/FlakyTestLogger.kt b/platform/platform-api/src/com/intellij/testFramework/FlakyTestLogger.kt
deleted file mode 100644
index 4fd00e5abf11..000000000000
--- a/platform/platform-api/src/com/intellij/testFramework/FlakyTestLogger.kt
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2000-2021 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
-package com.intellij.testFramework
-
-import com.intellij.concurrency.ConcurrentCollectionFactory
-import com.intellij.openapi.Disposable
-import com.intellij.openapi.util.Disposer
-import com.intellij.openapi.util.Key
-import org.jetbrains.annotations.TestOnly
-import java.io.PrintWriter
-import java.io.StringWriter
-
-@Deprecated("this class is here only for debugging a flaky test, it will be deleted as soon problem will be resolved")
-class FlakyTestLogger(val enabled: Boolean) : Disposable {
-
-
-  data class Entry(val time: Long, val text: String)
-
-  private val lists = ConcurrentCollectionFactory.createConcurrentIdentitySet<List<Entry>>()
-
-  private val lines = ThreadLocal.withInitial { ArrayList<Entry>().also { lists.add(it) } }
-
-  private fun add(str: String) {
-    lines.get().add(Entry(System.currentTimeMillis(), """${System.currentTimeMillis()} ${Thread.currentThread().name} $str"""))
-  }
-
-  override fun dispose() {
-    lists.flatten().sortedBy { it.time }.forEach { println(it.text) }
-  }
-
-  fun append(line: String) {
-    if (!enabled) return
-    add(line)
-  }
-
-  fun append(exception: Exception) {
-    if (!enabled) return
-    val stringWriter = StringWriter()
-    exception.printStackTrace(PrintWriter(stringWriter))
-    add(stringWriter.toString())
-  }
-
-  companion object {
-
-    private val KEY = Key.create<FlakyTestLogger>("LogAccumulator")
-
-    @JvmStatic
-    fun get(): FlakyTestLogger? = TestModeFlags.get(KEY)
-
-    @JvmStatic
-    fun force(): FlakyTestLogger = get() ?: FlakyTestLogger(false)
-
-    @JvmStatic
-    fun isEnabled(): Boolean = TestModeFlags.get(KEY) != null
-
-    @JvmStatic
-    @TestOnly
-    fun enable(disposer: Disposable) {
-      TestModeFlags.set(KEY, FlakyTestLogger(true).also { Disposer.register(disposer, it) }, disposer)
-    }
-
-  }
-
-}
\ No newline at end of file
diff --git a/xml/dom-impl/src/com/intellij/util/xml/impl/DomInvocationHandler.java b/xml/dom-impl/src/com/intellij/util/xml/impl/DomInvocationHandler.java
index 023cd257e0a5..dd8a0745e155 100644
--- a/xml/dom-impl/src/com/intellij/util/xml/impl/DomInvocationHandler.java
+++ b/xml/dom-impl/src/com/intellij/util/xml/impl/DomInvocationHandler.java
@@ -20,7 +20,6 @@ import com.intellij.psi.xml.XmlAttribute;
 import com.intellij.psi.xml.XmlElement;
 import com.intellij.psi.xml.XmlFile;
 import com.intellij.psi.xml.XmlTag;
-import com.intellij.testFramework.FlakyTestLogger;
 import com.intellij.util.*;
 import com.intellij.util.containers.ContainerUtil;
 import com.intellij.util.xml.*;
@@ -656,17 +655,7 @@ public abstract class DomInvocationHandler extends UserDataHolderBase implements
   @Nullable
   public final Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
     try {
-      Invocation invocation = findInvocation(method);
-      Object r = invocation.invoke(this, args);
-      FlakyTestLogger log = FlakyTestLogger.get();
-      if (log != null && method.getName().equals("exists")) {
-        log.append("Invocation: for '" + method + "' is '" + invocation + " of " + invocation.getClass() + "' handler = '" + this +
-                   " of " + this.getClass() + "' r = " + r + " of " + ObjectUtils.doIfNotNull(r, Object::getClass));
-        if (this instanceof IndexedElementInvocationHandler) {
-          log.append(((IndexedElementInvocationHandler)this).created);
-        }
-      }
-      return r;
+      return findInvocation(method).invoke(this, args);
     }
     catch (InvocationTargetException ex) {
       throw ex.getTargetException();
diff --git a/xml/dom-impl/src/com/intellij/util/xml/impl/IndexedElementInvocationHandler.java b/xml/dom-impl/src/com/intellij/util/xml/impl/IndexedElementInvocationHandler.java
index 35395eb688e7..1bf552afadb7 100644
--- a/xml/dom-impl/src/com/intellij/util/xml/impl/IndexedElementInvocationHandler.java
+++ b/xml/dom-impl/src/com/intellij/util/xml/impl/IndexedElementInvocationHandler.java
@@ -20,7 +20,6 @@ import com.intellij.openapi.util.Factory;
 import com.intellij.psi.xml.XmlElement;
 import com.intellij.psi.xml.XmlFile;
 import com.intellij.psi.xml.XmlTag;
-import com.intellij.testFramework.FlakyTestLogger;
 import com.intellij.util.IncorrectOperationException;
 import com.intellij.util.xml.DomElement;
 import com.intellij.util.xml.EvaluatedXmlName;
@@ -39,8 +38,6 @@ public class IndexedElementInvocationHandler extends DomInvocationHandler {
   private static final Logger LOG = Logger.getInstance(IndexedElementInvocationHandler.class);
   private final int myIndex;
 
-  public final Exception created;
-
   public IndexedElementInvocationHandler(final EvaluatedXmlName tagName,
                                          final FixedChildDescriptionImpl description,
                                          final int index,
@@ -48,8 +45,6 @@ public class IndexedElementInvocationHandler extends DomInvocationHandler {
                                          final DomManagerImpl manager,
                                          @Nullable ElementStub stub) {
     super(description.getType(), strategy, tagName, description, manager, strategy.isPhysical(), stub);
-    created = FlakyTestLogger.isEnabled() ? new Exception(
-      "IndexedElementInvocationHandler(" + tagName + ", " + description + ", " + strategy + ", " + index + ", " + stub + ")") : null;
     myIndex = index;
   }