Remove mention of rustfmt

README.md

@@ -233,14 +233,13 @@ macro.
 ## Non-macro code generators
 
 When using `quote` in a build.rs or main.rs and writing the output out to a
-file, consider having the code generator pass the tokens through [prettyplease] or [rustfmt]
+file, consider having the code generator pass the tokens through [prettyplease]
 before writing. This way if an error occurs in the generated code it is
 convenient for a human to read and debug.
 
 Be aware that no kind of hygiene or span information is retained when tokens are
 written to a file; the conversion from tokens to source code is lossy.
 
-[rustfmt]: https://github.com/rust-lang/rustfmt
 [prettyplease]: https://github.com/dtolnay/prettyplease
 
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