Auto merge of #25407 - pshaughn:radiocase, r=jdm

Radio button grouping is now case-sensitive

Just catching up with a spec update, as explained in #25389

---
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #25389

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- [X] There are tests for these changes
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2 files changed, 1 insertions, 28 deletions

diff --git a/components/script/dom/htmlinputelement.rs b/components/script/dom/htmlinputelement.rs
index 9018f05813a..0cef0a10535 100755
--- a/components/script/dom/htmlinputelement.rs
+++ b/components/script/dom/htmlinputelement.rs
@@ -46,7 +46,6 @@ use crate::textinput::KeyReaction::{
 };
 use crate::textinput::Lines::Single;
 use crate::textinput::{Direction, SelectionDirection, TextInput, UTF16CodeUnits, UTF8Bytes};
-use caseless::compatibility_caseless_match_str;
 use dom_struct::dom_struct;
 use embedder_traits::FilterPattern;
 use encoding_rs::Encoding;
@@ -917,7 +916,7 @@ fn in_same_group(
     // TODO Both a and b are in the same home subtree.
     other.form_owner().as_deref() == owner &&
     match (other.radio_group_name(), group) {
-        (Some(ref s1), Some(s2)) => compatibility_caseless_match_str(s1, s2) && s2 != &atom!(""),
+        (Some(ref s1), Some(s2)) => s1 == s2 && s2 != &atom!(""),
         _ => false
     }
 }
diff --git a/tests/wpt/metadata/html/semantics/forms/the-input-element/radio-groupname-case.html.ini b/tests/wpt/metadata/html/semantics/forms/the-input-element/radio-groupname-case.html.ini
deleted file mode 100644
index 69e88a9bd4e..00000000000
--- a/tests/wpt/metadata/html/semantics/forms/the-input-element/radio-groupname-case.html.ini
+++ /dev/null
@@ -1,26 +0,0 @@
-[radio-groupname-case.html]
-  type: testharness
-  [radio button group name = paSSfield-killroyß]
-    expected: FAIL
-
-  [Among names like sImPlE, everything must be checkable at the same time]
-    expected: FAIL
-
-  [Among names like paSSfield-killroyß, everything must be checkable at the same time]
-    expected: FAIL
-
-  [Among names like глупый, everything must be checkable at the same time]
-    expected: FAIL
-
-  [Among names like åωk, everything must be checkable at the same time]
-    expected: FAIL
-
-  [Among names like blah1, everything must be checkable at the same time]
-    expected: FAIL
-
-  [Among names like tÉdz5アパートFi, everything must be checkable at the same time]
-    expected: FAIL
-
-  [Among names like ΣΣ, everything must be checkable at the same time]
-    expected: FAIL
-