REGRESSION (268393@main?): [Monterey wk2 ] imported/w3c/web-platform-…

…tests/mimesniff/media/media-sniff.window.html is a consistent failure

https://bugs.webkit.org/show_bug.cgi?id=268095
rdar://121611809

Unreviewed TestExpectations update.

WebM is now supported on all platforms by WK1

* LayoutTests/platform/mac-monterey-wk2/TestExpectations:
* LayoutTests/platform/mac-monterey-wk2/imported/w3c/web-platform-tests/mimesniff/media/media-sniff.window-expected.txt: Removed.
* LayoutTests/platform/mac-wk2/TestExpectations:

Canonical link: https://commits.webkit.org/273558@main

LayoutTests/platform/mac-monterey-wk2/TestExpectations

@@ -50,6 +50,4 @@ http/tests/paymentrequest/ApplePayModifier-multiTokenContexts.https.html [ Skip
 http/tests/paymentrequest/ApplePayModifier-recurringPaymentRequest.https.html [ Skip ]
 http/tests/paymentrequest/ApplePayPaymentCompleteDetails-orderDetails.https.html [ Skip ]
 
-webkit.org/b/268095 imported/w3c/web-platform-tests/mimesniff/media/media-sniff.window.html [ Failure ]
-
 webkit.org/b/268124 imported/w3c/web-platform-tests/cookie-store/change_eventhandler_for_document_cookie.https.window.html [ Failure ]

LayoutTests/platform/mac-wk2/TestExpectations

@@ -1875,9 +1875,6 @@ webkit.org/b/262411 [ Sonoma+ ] fast/scrolling/scroll-to-anchor-zoomed-header.ht
 [ Monterey+ ] http/wpt/mediarecorder/pause-recording.html [ Pass Failure Crash ]
 [ Sonoma ] http/wpt/mediarecorder/record-96KHz-sources.html [ Crash ]
 
-# rdar://114452082 (REGRESSION (262124@main?): [ Sonoma wk2 ] imported/w3c/web-platform-tests/mimesniff/media/media-sniff.window.html is a consistent failure)
-[ Sonoma+ ] imported/w3c/web-platform-tests/mimesniff/media/media-sniff.window.html [ Failure ]
-
 [ Monterey Ventura ] media/media-vp8-webm.html [ ImageOnlyFailure ] # Missing AVSampleBufferDisplayLayer's ReadyForDisplayDidChangeNotification
 
 webkit.org/b/263049 [ Sonoma+ ] fast/forms/scroll-into-view-and-show-validation-message.html [ Pass Failure ]