Drop comment about svg/custom/js-late-[clipPath,gradient}-...svg tests
Drop comment about svg/custom/js-late-[clipPath,gradient}-...svg tests

Appear stable after fixups in https://codereview.chromium.org/1111323002

Rebaseline for virtual/slimmingpaint/ to include the
"paintInvalidationClients" information.

TBR=pdr@chromium.org
BUG=353301,302529,477743

Review URL: https://codereview.chromium.org/1122073002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@194865 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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