Remove duplicate line

Closes #37261
https://github.com/dart-lang/sdk/pull/37261

GitOrigin-RevId: 1d62ffb5095b0268d3115863b81963ffeb39ad3e
Change-Id: I47d304c3e3e635a7087e363ad97288b94fa85c99
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/106060
Reviewed-by: Kevin Moore <kevmoo@google.com>
Commit-Queue: Kevin Moore <kevmoo@google.com>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c03ee98..9f32210 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -139,7 +139,6 @@
 * Added `prefer_if_null_operators`.
 * Fixed `prefer_contains` false positives.
 * Fixed `unnecessary_parenthesis` false positives.
-* New lint: `prefer_double_quotes`
 * Fixed `prefer_asserts_in_initializer_lists` false positives
 * Fixed `curly_braces_in_flow_control_structures` to handle more cases
 * New lint: `prefer_double_quotes`