Remove unnecessary trait HasDepContext

compiler/rustc_middle/src/dep_graph/graph.rs

@@ -23,7 +23,7 @@
 
 use super::query::DepGraphQuery;
 use super::serialized::{GraphEncoder, SerializedDepGraph, SerializedDepNodeIndex};
-use super::{DepKind, DepNode, HasDepContext, WorkProductId, read_deps, with_deps};
+use super::{DepKind, DepNode, WorkProductId, read_deps, with_deps};
 use crate::dep_graph::edges::EdgesVec;
 use crate::ich::StableHashingContext;
 use crate::ty::TyCtxt;
@@ -938,7 +938,7 @@ fn try_mark_parent_green<'tcx>(
 
         // We failed to mark it green, so we try to force the query.
         debug!("trying to force dependency {dep_dep_node:?}");
-        if !tcx.dep_context().try_force_from_dep_node(*dep_dep_node, parent_dep_node_index, frame) {
+        if !tcx.try_force_from_dep_node(*dep_dep_node, parent_dep_node_index, frame) {
             // The DepNode could not be forced.
             debug!("dependency {dep_dep_node:?} could not be forced");
             return None;
@@ -985,10 +985,7 @@ fn try_mark_previous_green<'tcx>(
         let frame = MarkFrame { index: prev_dep_node_index, parent: frame };
 
         // We never try to mark eval_always nodes as green
-        debug_assert!(
-            !tcx.dep_context()
-                .is_eval_always(self.previous.index_to_node(prev_dep_node_index).kind)
-        );
+        debug_assert!(!tcx.is_eval_always(self.previous.index_to_node(prev_dep_node_index).kind));
 
         let prev_deps = self.previous.edge_targets_from(prev_dep_node_index);
 

compiler/rustc_middle/src/dep_graph/mod.rs

@@ -25,16 +25,6 @@
 mod query;
 mod serialized;
 
-pub trait HasDepContext<'tcx>: Copy {
-    fn dep_context(&self) -> TyCtxt<'tcx>;
-}
-
-impl<'tcx> HasDepContext<'tcx> for TyCtxt<'tcx> {
-    fn dep_context(&self) -> TyCtxt<'tcx> {
-        *self
-    }
-}
-
 /// Describes the contents of the fingerprint generated by a given query.
 ///
 /// This is mainly for determining whether and how we can reconstruct a key