[COOP] access reporting. Remove excessive test cases.

The [window.idl] defines CrossOrigin indexed and named 'getter', but it
doesn't define their 'setter' counterpart.

As a result, we should remove test for them. They were added in excess.

[window.idl]: third_party/blink/renderer/core/frame/window.idl

Bug: chromium:1090273
Change-Id: I31fb77c65b82fef3d6f44297bfa63a331a9e1b02
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2315694
Reviewed-by: Yuki Shiino <yukishiino@chromium.org>
Reviewed-by: Camille Lamy <clamy@chromium.org>
Auto-Submit: Arthur Sonzogni <arthursonzogni@chromium.org>
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#792214}
diff --git a/html/cross-origin-opener-policy/reporting/access-reporting/property.https.html b/html/cross-origin-opener-policy/reporting/access-reporting/property.https.html
index 67aebb5..625fc94 100644
--- a/html/cross-origin-opener-policy/reporting/access-reporting/property.https.html
+++ b/html/cross-origin-opener-policy/reporting/access-reporting/property.https.html
@@ -23,12 +23,10 @@
   ["focus"       , w => w.focus()            ] ,
   ["frames"      , w => w.frames             ] ,
   ["indexed"     , w => w[0]                 ] ,
-  ["indexed"     , w => w[0] = ""            ] ,
   ["length"      , w => w.length             ] ,
   ["location"    , w => w.location           ] ,
   ["location"    , w => w.location = "#"     ] ,
   ["named"       , w => w["test"]            ] ,
-  ["named"       , w => w["test"] = ""       ] ,
   ["opener"      , w => w.opener             ] ,
   ["opener"      , w => w.opener = ""        ] ,
   ["postMessage" , w => w.postMessage("")    ] ,