Bug 1640281 - Set textdecoder-copy.any.serviceworker.html to also pass in late beta. r=jgraham

Differential Revision: https://phabricator.services.mozilla.com/D76589

testing/web-platform/meta/encoding/textdecoder-copy.any.js.ini

@@ -14,8 +14,6 @@
 
 
 [textdecoder-copy.any.serviceworker.html]
-  expected:
-    if not early_beta_or_earlier: ERROR
   [Modify buffer after passing it in (SharedArrayBuffer)]
     expected: FAIL