Follow up to r168655, linux expectation should be deleted

Per discussion with dpranke, linux does fallback to win, so this file
should have been deleted in r168655 after all.

[test-rebaselines]scottmg@scottmg:/work/cr/src$ ./webkit/tools/layout_tests/run_webkit_tests.py svg/animations/animate-elem-08-t-drt.html --details
Using port 'linux-x86_64'
Test configuration: <lucid, x86_64, release>
View the test results at file:///work/cr/src/webkit/Release/layout-test-results/results.html
Baseline search path: linux -> win -> generic
Using Release build
Pixel tests enabled
Regular timeout: 6000, slow test timeout: 30000
Command line: /work/cr/src/out/Release/content_shell --dump-render-tree --enable-crash-reporter --crash-dumps-dir=/work/cr/src/out/Release/crash-dumps -

Found 1 test; running 1, skipping 0.

Running 1 content_shell.

[1/1] svg/animations/animate-elem-08-t-drt.html
  txt: platform/win/svg/animations/animate-elem-08-t-drt-expected.txt
  png: <none>
  wav: <none>
  exp: PASS
  got: PASS
 took: 0.340

The test ran as expected.

TBR=pdr@chromium.org
BUG=344880

Review URL: https://codereview.chromium.org/188693005

git-svn-id: svn://svn.chromium.org/blink/trunk@168659 bbb929c8-8fbe-4397-9dbb-9b2b20218538