Revert of Fix leaks when the shared worker is requested to be terminated while loading the main script.

LayoutTests/LeakExpectations

Index: LayoutTests/LeakExpectations
diff --git a/LayoutTests/LeakExpectations b/LayoutTests/LeakExpectations
index 0448c4cf77998913d8c5e340c00679df499852bc..c0f6d1c7222828c155554790eb1617c2da800619 100644
--- a/LayoutTests/LeakExpectations
+++ b/LayoutTests/LeakExpectations
@@ -54,6 +54,10 @@
 # -----------------------------------------------------------------
 # Untriaged but known leaks which may be false positives.
 # -----------------------------------------------------------------
+
+crbug.com/398742 fast/workers/shared-worker-event-listener.html [ Leak ]
+crbug.com/398742 fast/workers/worker-crash-with-invalid-location.html [ Leak ]
+crbug.com/398742 http/tests/security/contentSecurityPolicy/1.1/child-src/worker-shared-allowed.html [ Leak ]
 
 crbug.com/364408 inspector/extensions/extensions-audits-content-script.html [ Leak ]
 crbug.com/364408 inspector/extensions/extensions-eval-content-script.html [ Leak ]