Remove unused EverInitializedPlaces::tcx field.

Author: nnethercote

compiler/rustc_borrowck/src/lib.rs

@@ -288,7 +288,7 @@ fn do_mir_borrowck<'tcx>(
         .into_engine(tcx, body)
         .pass_name("borrowck")
         .iterate_to_fixpoint();
-    let flow_ever_inits = EverInitializedPlaces::new(tcx, body, &mdpe)
+    let flow_ever_inits = EverInitializedPlaces::new(body, &mdpe)
         .into_engine(tcx, body)
         .pass_name("borrowck")
         .iterate_to_fixpoint();

compiler/rustc_mir_dataflow/src/impls/initialized.rs

@@ -250,15 +250,13 @@ impl<'a, 'tcx> HasMoveData<'tcx> for DefinitelyInitializedPlaces<'a, 'tcx> {
 /// }
 /// ```
 pub struct EverInitializedPlaces<'a, 'tcx> {
-    #[allow(dead_code)]
-    tcx: TyCtxt<'tcx>,
     body: &'a Body<'tcx>,
     mdpe: &'a MoveDataParamEnv<'tcx>,
 }
 
 impl<'a, 'tcx> EverInitializedPlaces<'a, 'tcx> {
-    pub fn new(tcx: TyCtxt<'tcx>, body: &'a Body<'tcx>, mdpe: &'a MoveDataParamEnv<'tcx>) -> Self {
-        EverInitializedPlaces { tcx, body, mdpe }
+    pub fn new(body: &'a Body<'tcx>, mdpe: &'a MoveDataParamEnv<'tcx>) -> Self {
+        EverInitializedPlaces { body, mdpe }
     }
 }