Reenable timeline-node-reference.html test

BUG=572726
TBR=caseq@chromium.org

Review-Url: https://codereview.chromium.org/2174893002
Cr-Commit-Position: refs/heads/master@{#407253}

third_party/WebKit/LayoutTests/TestExpectations

@@ -1209,8 +1209,6 @@ crbug.com/579493 http/tests/security/xss-DENIED-xsl-document-securityOrigin.xml
 crbug.com/572723 [ Linux Mac10.9 ] inspector/sources/debugger/debugger-disable-enable.html [ Pass Failure Timeout ]
 crbug.com/572723 inspector/sources/debugger/debugger-uncaught-promise-on-pause.html [ Timeout Pass ]
 
-crbug.com/572726 inspector/tracing/timeline-misc/timeline-node-reference.html [ Timeout Pass Crash ]
-
 crbug.com/155836 fast/text/emphasis-ellipsis-complextext.html [ Failure Pass ]
 
 crbug.com/577380 [ Linux Debug ] http/tests/serviceworker/chromium/registration-stress.html [ Failure ]