Update date references for 2026-05 triage (#2861)

src/implementing-new-features.md

@@ -1,4 +1,3 @@
-<!-- date-check: Jul 2025 -->
 
 # Implementing new language features
 

src/normalization.md

@@ -164,7 +164,6 @@ In this example:
 
 When interfacing with the type system it will often be the case that it's necessary to request a type be normalized. There are a number of different entry points to the underlying normalization logic and each entry point should only be used in specific parts of the compiler.
 
-<!-- date-check: May 2025 -->
 An additional complication is that the compiler is currently undergoing a transition from the old trait solver to the new trait solver.
 As part of this transition our approach to normalization in the compiler has changed somewhat significantly, resulting in some normalization entry points being "old solver only" slated for removal in the long-term once the new solver has stabilized.
 The transition can be tracked via the [WG-trait-system-refactor](https://github.com/rust-lang/rust/labels/WG-trait-system-refactor) label in Github.

src/rustdoc-internals.md

@@ -222,7 +222,7 @@ directly, even during `HTML` generation.
 This [didn't used to be the case], and
 a lot of `rustdoc`'s architecture was designed around not doing that, but a
 `TyCtxt` is now passed to `formats::renderer::run_format`, which is used to
-run generation for both `HTML` and the (unstable as of <!-- date-check --> Nov 2025) JSON format.
+run generation for both `HTML` and the (unstable as of <!-- date-check --> May 2026) JSON format.
 
 This change has allowed other changes to remove data from the "clean" [`AST`][ast]
 that can be easily derived from `TyCtxt` queries, and we'll usually accept

src/tests/minicore.md

@@ -1,6 +1,5 @@
 # `minicore` test auxiliary: using `core` stubs
 
-<!-- date-check: Oct 2025 -->
 
 [`tests/auxiliary/minicore.rs`][`minicore`] is a test auxiliary for ui/codegen/assembly/mir-opt test suites.
 It provides `core` stubs for tests that need to

src/tests/misc.md

@@ -2,7 +2,6 @@
 
 ## `RUSTC_BOOTSTRAP` and stability
 
-<!-- date-check: Nov 2024 -->
 
 This is a bootstrap/compiler implementation detail, but it can also be useful
 for testing: