Remove tests for playing video in reverse, which is not supported in Blink

LayoutTests/TestExpectations

 # See http://trac.webkit.org/wiki/TestExpectations for more information on this file.
 
 crbug.com/237000 [ Win Linux ] virtual/gpu/fast/canvas/getPutImageDataPairTest.html [ Slow ]
 crbug.com/241869 [ Debug ] css3/flexbox/multiline-justify-content.html [ Pass Timeout ]
 webkit.org/b/82097 [ Debug ] editing/selection/move-by-word-visually-crash-test-5.html [ Slow ]
 webkit.org/b/92287 fast/canvas/webgl/context-creation-and-destruction.html [ Failure Pass Timeout ]
 webkit.org/b/92287 virtual/gpu/fast/canvas/webgl/context-creation-and-destruction.html [ Crash Failure Pass Timeout ]
 crbug.com/24182 [ Debug ] fast/css/large-list-of-rules-crash.html [ Slow ]
 crbug.com/24182 [ Debug ] fast/dom/shadow/tree-scope-crash.html [ Slow ]
 crbug.com/24182 [ Debug ] fast/dom/Window/window-postmessage-clone-really-deep-array.html [ Slow ]
@@ skipping 311 matching lines @@
 
 # Requires testRunner.dispatchPendingLoadRequests
 crbug.com/33211 http/tests/loading/deleted-host-in-resource-load-delegate-callback.html [ Timeout ]
 
 crbug.com/78376 http/tests/media/video-play-stall-seek.html [ Timeout ]
 
 # canplaythrough event is sent too early.
 # Test is intentionally SLOW as we're waiting for a connection timeout.
 crbug.com/73609 http/tests/media/video-play-stall.html [ Failure Slow ]
 
-# We haven't implemented reverse audio/video playback.
-crbug.com/33099 [ Win Linux Mac Release ] media/video-reverse-play-duration.html [ Timeout ]
-crbug.com/33099 [ Win Linux Debug ] media/video-reverse-play-duration.html [ Timeout ]
-crbug.com/33099 media/video-timeupdate-reverse-play.html [ Timeout ]
-
 crbug.com/100798 [ Mac Debug ] fullscreen/full-screen-iframe-allowed.html [ Failure Pass ]
 crbug.com/100798 [ Win7 Mac Debug ] fullscreen/full-screen-iframe-allowed-prefixed.html [ Failure Pass ]
 
 # -----------------------------------------------------------------
 # SVG TESTS
 # -----------------------------------------------------------------
 
 # Reporting translation of -0.00.
 webkit.org/b/106126 [ Win ] svg/custom/feComponentTransfer-Table.svg [ ImageOnlyFailure Pass ]
 
@@ skipping 1350 matching lines @@
 crbug.com/243308 [ Win ] fast/text/international/danda-space.html [ ImageOnlyFailure ]
 crbug.com/243314 [ Mac Debug ] compositing/iframes/iframe-copy-on-scroll.html [ Crash ]
 crbug.com/243314 [ Mac Debug ] compositing/reflections/remove-add-reflection.html [ Crash ]
 crbug.com/243314 [ Mac Debug ] inspector/styles/styles-source-lines-inline.html [ Crash ]
 crbug.com/243314 [ Mac Debug ] virtual/gpu/compositedscrolling/overflow/content-loses-scrollbars.html [ Crash ]
 crbug.com/243314 [ Mac Debug ] virtual/gpu/fast/canvas/access-zero-sized-canvas.html [ Crash ]
 crbug.com/243314 [ Mac Debug ] css2.1/20110323/background-intrinsic-008.htm [ Crash ]
 crbug.com/243314 [ Mac Debug ] editing/style/font-face-unquote.html [ Crash ]
 crbug.com/243314 [ Mac Debug ] fast/dom/node-move-to-new-document-crash-main.html [ Crash ]
 crbug.com/243314 [ Mac Debug ] fast/forms/text/text-set-selection-crash.html [ Crash ]
-crbug.com/243314 [ Mac Debug ] media/video-reverse-play-duration.html [ Crash Timeout ]
 crbug.com/243314 [ Mac Debug ] svg/custom/js-late-clipPath-and-object-creation.svg [ Crash ]
 crbug.com/243314 [ Mac Debug ] virtual/gpu/compositedscrolling/overflow/build-paint-order-list-where-opt-in-decisions-can-affect-each-other.html [ Crash ]
 crbug.com/242851 editing/pasteboard/drop-file-svg.html [ Crash ]
 crbug.com/242851 editing/pasteboard/file-drag-to-editable.html [ Crash ]
 
 # Switching to content shell failures
 crbug.com/243353 [ Mac ] animations/dynamic-stylesheet-loading.html [ Timeout ]
 crbug.com/243353 [ Linux Win ] animations/dynamic-stylesheet-loading.html [ Failure Pass ]
 crbug.com/243353 [ Mac ] animations/transition-and-animation-1.html [ Timeout ]
 crbug.com/243353 [ Mac ] animations/transition-and-animation-2.html [ Pass Timeout ]
@@ skipping 165 matching lines @@
 crbug.com/244481 [ Win7 Debug ] virtual/gpu/fast/canvas/canvas-composite-canvas.html [ Timeout ]
 
 crbug.com/244678 [ Win7 Debug ] animations/3d/matrix-transform-type-animation.html [ Failure Timeout ]
 crbug.com/245154 editing/selection/move-by-character-brute-force.html [ Pass Timeout ]
 
 crbug.com/245630 [ Win7 Debug ] compositing/overflow/overflow-positioning.html [ ImageOnlyFailure Pass  ]
 crbug.com/245641 [ Win7 ] http/tests/loading/text-content-type-with-binary-extension.html [ Failure Pass  ]
 crbug.com/245644 [ Win7 Linux Debug ] virtual/gpu/fast/canvas/2d.text.draw.fill.maxWidth.gradient.html [ Failure Pass ]
 
 crbug.com/245670 [ Linux ] fast/forms/access-key-for-all-elements.html [ Failure Pass ]