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-rw-r--r--compiler/rustc_feature/src/unstable.rs2
1 files changed, 0 insertions, 2 deletions
diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs
index 132e2ddee29..b41eedd17a0 100644
--- a/compiler/rustc_feature/src/unstable.rs
+++ b/compiler/rustc_feature/src/unstable.rs
@@ -424,8 +424,6 @@ declare_features! (
     /// Allows function attribute `#[coverage(on/off)]`, to control coverage
     /// instrumentation of that function.
     (unstable, coverage_attribute, "1.74.0", Some(84605)),
-    /// Allows users to provide classes for fenced code block using `class:classname`.
-    (unstable, custom_code_classes_in_docs, "1.74.0", Some(79483)),
     /// Allows non-builtin attributes in inner attribute position.
     (unstable, custom_inner_attributes, "1.30.0", Some(54726)),
     /// Allows custom test frameworks with `#![test_runner]` and `#[test_case]`.