Fix `clippy::needless_borrow` in the compiler

`x clippy compiler -Aclippy::all -Wclippy::needless_borrow --fix`.

Then I had to remove a few unnecessary parens and muts that were exposed
now.

2 files changed, 3 insertions, 3 deletions

diff --git a/compiler/rustc_codegen_llvm/src/back/archive.rs b/compiler/rustc_codegen_llvm/src/back/archive.rs
index f33075a8879..cf47c94a81f 100644
--- a/compiler/rustc_codegen_llvm/src/back/archive.rs
+++ b/compiler/rustc_codegen_llvm/src/back/archive.rs
@@ -68,7 +68,7 @@ impl<'a> ArchiveBuilder<'a> for LlvmArchiveBuilder<'a> {
     ) -> io::Result<()> {
         let mut archive = archive.to_path_buf();
         if self.sess.target.llvm_target.contains("-apple-macosx") {
-            if let Some(new_archive) = try_extract_macho_fat_archive(&self.sess, &archive)? {
+            if let Some(new_archive) = try_extract_macho_fat_archive(self.sess, &archive)? {
                 archive = new_archive
             }
         }
diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs
index 8d335ff1718..3a8b8e1ad11 100644
--- a/compiler/rustc_codegen_llvm/src/back/write.rs
+++ b/compiler/rustc_codegen_llvm/src/back/write.rs
@@ -124,7 +124,7 @@ pub fn create_target_machine(tcx: TyCtxt<'_>, mod_name: &str) -> OwnedTargetMach
     let config = TargetMachineFactoryConfig { split_dwarf_file, output_obj_file };
 
     target_machine_factory(
-        &tcx.sess,
+        tcx.sess,
         tcx.backend_optimization_level(()),
         tcx.global_backend_features(()),
     )(config)
@@ -1106,7 +1106,7 @@ fn record_llvm_cgu_instructions_stats(prof: &SelfProfilerRef, llmod: &llvm::Modu
     }
 
     let raw_stats =
-        llvm::build_string(|s| unsafe { llvm::LLVMRustModuleInstructionStats(&llmod, s) })
+        llvm::build_string(|s| unsafe { llvm::LLVMRustModuleInstructionStats(llmod, s) })
             .expect("cannot get module instruction stats");
 
     #[derive(serde::Deserialize)]