Remove an unnecessary method.

Because the default method is also a no-op.

Author: nnethercote

compiler/rustc_mir_dataflow/src/value_analysis.rs

@@ -51,7 +51,7 @@ use tracing::debug;
 
 use crate::fmt::DebugWithContext;
 use crate::lattice::{HasBottom, HasTop};
-use crate::{Analysis, JoinSemiLattice, SwitchIntEdgeEffects};
+use crate::{Analysis, JoinSemiLattice};
 
 pub trait ValueAnalysis<'tcx> {
     /// For each place of interest, the analysis tracks a value of the given type.
@@ -386,14 +386,6 @@ impl<'tcx, T: ValueAnalysis<'tcx>> Analysis<'tcx> for ValueAnalysisWrapper<T> {
             self.0.handle_call_return(return_places, state)
         }
     }
-
-    fn apply_switch_int_edge_effects(
-        &self,
-        _block: BasicBlock,
-        _discr: &Operand<'tcx>,
-        _apply_edge_effects: &mut impl SwitchIntEdgeEffects<Self::Domain>,
-    ) {
-    }
 }
 
 rustc_index::newtype_index!(