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diff --git a/src/docs/suspicious_arithmetic_impl.txt b/src/docs/suspicious_arithmetic_impl.txt
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index d67ff279346..00000000000
--- a/src/docs/suspicious_arithmetic_impl.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-### What it does
-Lints for suspicious operations in impls of arithmetic operators, e.g.
-subtracting elements in an Add impl.
-
-### Why is this bad?
-This is probably a typo or copy-and-paste error and not intended.
-
-### Example
-```
-impl Add for Foo {
-    type Output = Foo;
-
-    fn add(self, other: Foo) -> Foo {
-        Foo(self.0 - other.0)
-    }
-}
-```
\ No newline at end of file