tidy up

src/librustc/mir/mod.rs

@@ -2932,5 +2932,3 @@ impl<'tcx> TypeFoldable<'tcx> for Literal<'tcx> {
         }
     }
 }
-
-

src/librustc_mir/borrow_check/nll/liveness_map.rs

@@ -55,4 +55,4 @@ impl NllLivenessMap {
     }
 }
 
-newtype_index!(LocalWithRegion);
+newtype_index!(LocalWithRegion);

src/librustc_mir/util/liveness.rs

@@ -544,5 +544,3 @@ pub fn write_mir_fn<'a, 'tcx, V: Idx>(
     writeln!(w, "}}")?;
     Ok(())
 }
-
-