Remove an old in-progress comment from a previous PR.

nnethercote · nnethercote · commit b9f6dfef0beb · 2020-04-22T15:22:18.000+10:00
This comment wasn't supposed to have landed.
diff --git a/src/librustc_middle/mir/cache.rs b/src/librustc_middle/mir/cache.rs
@@ -60,7 +60,6 @@ impl Cache {
     }
 
     /// This will recompute the predecessors cache if it is not available
-    // njn: typedef?
     fn predecessors(
         &mut self,
         body: &Body<'_>,

Original file line number	Diff line number	Diff line change
`@@ -60,7 +60,6 @@ impl Cache {`
`60`	`60`	`}`
`61`	`61`
`62`	`62`	`/// This will recompute the predecessors cache if it is not available`
`63`		`- // njn: typedef?`
`64`	`63`	`fn predecessors(`
`65`	`64`	`&mut self,`
`66`	`65`	`body: &Body<'_>,`