rustc: remove leftover lifetimes with no bounds from where clauses.

src/librustc/dep_graph/dep_node.rs

@@ -207,8 +207,6 @@ macro_rules! define_dep_nodes {
             pub fn new<'a, 'tcx>(tcx: TyCtxt<'tcx>,
                                        dep: DepConstructor<'tcx>)
                                        -> DepNode
-                where 'tcx,
-                      'tcx
             {
                 match dep {
                     $(

src/librustc/infer/lattice.rs

@@ -48,7 +48,6 @@ pub fn super_lattice_tys<'a, 'tcx, L>(
 ) -> RelateResult<'tcx, Ty<'tcx>>
 where
     L: LatticeDir<'a, 'tcx>,
-    'tcx,
 {
     debug!("{}.lattice_tys({:?}, {:?})",
            this.tag(),

src/librustc/traits/select.rs

@@ -697,7 +697,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
     ) -> Result<EvaluationResult, OverflowError>
     where
         I: IntoIterator<Item = PredicateObligation<'tcx>>,
-        'tcx,
     {
         let mut result = EvaluatedToOk;
         for obligation in predicates {

src/librustc/ty/query/on_disk_cache.rs

@@ -511,7 +511,6 @@ fn decode_tagged<'a, 'tcx, D, T, V>(decoder: &mut D,
     where T: Decodable + Eq + ::std::fmt::Debug,
           V: Decodable,
           D: DecoderWithPosition,
-          'tcx,
 {
     let start_pos = decoder.position();