Revert of rebaseline after clear change -- pdf was not treating clear as SRC_MODE

expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86_64-Release/expected-results.json

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@@ skipping 580 matching lines @@
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@@ skipping 863 matching lines @@
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@@ skipping 160 matching lines @@
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