Rollup merge of #106151 - TaKO8Ki:remove-unused-imports, r=jackh726

Remove unused imports

diff --combined compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs
index b60fc276178b396204208118750ca7434fa54976,ef0ffd2ec51c9834a1e961274af10dc6d9b98d26..ac60f085304d40d8d9e5677e6f7fb03238e1e83a
--- 1/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs
--- 2/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs
+++ b/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs
@@@ -81,7 -81,6 +81,6 @@@ use rustc_span::Span
  use rustc_trait_selection::traits::error_reporting::TypeErrCtxtExt;
  use rustc_trait_selection::traits::outlives_bounds::InferCtxtExt as _;
  use rustc_trait_selection::traits::{self, translate_substs, wf, ObligationCtxt};
- use tracing::instrument;
  
  pub(super) fn check_min_specialization(tcx: TyCtxt<'_>, impl_def_id: LocalDefId) {
      if let Some(node) = parent_specialization_node(tcx, impl_def_id) {
@@@ -157,11 -156,11 +156,11 @@@ fn check_constness(tcx: TyCtxt<'_>, imp
  /// ```
  ///
  /// Would return `S1 = [C]` and `S2 = [Vec<C>, C]`.
 -fn get_impl_substs<'tcx>(
 -    tcx: TyCtxt<'tcx>,
 +fn get_impl_substs(
 +    tcx: TyCtxt<'_>,
      impl1_def_id: LocalDefId,
      impl2_node: Node,
 -) -> Option<(SubstsRef<'tcx>, SubstsRef<'tcx>)> {
 +) -> Option<(SubstsRef<'_>, SubstsRef<'_>)> {
      let infcx = &tcx.infer_ctxt().build();
      let ocx = ObligationCtxt::new(infcx);
      let param_env = tcx.param_env(impl1_def_id);