rustc: remove 'x: 'y bounds (except from comments/strings).

src/librustc_codegen_llvm/builder.rs

@@ -27,7 +27,7 @@ use std::iter::TrustedLen;
 
 // All Builders must have an llfn associated with them
 #[must_use]
-pub struct Builder<'a, 'll: 'a, 'tcx: 'll> {
+pub struct Builder<'a, 'll, 'tcx> {
     pub llbuilder: &'ll mut llvm::Builder<'ll>,
     pub cx: &'a CodegenCx<'ll, 'tcx>,
 }

src/librustc_codegen_llvm/context.rs

@@ -34,7 +34,7 @@ use crate::abi::Abi;
 /// There is one `CodegenCx` per compilation unit. Each one has its own LLVM
 /// `llvm::Context` so that several compilation units may be optimized in parallel.
 /// All other LLVM data structures in the `CodegenCx` are tied to that `llvm::Context`.
-pub struct CodegenCx<'ll, 'tcx: 'll> {
+pub struct CodegenCx<'ll, 'tcx> {
     pub tcx: TyCtxt<'tcx>,
     pub check_overflow: bool,
     pub use_dll_storage_attrs: bool,

src/librustc_codegen_llvm/lib.rs

@@ -125,7 +125,7 @@ impl ExtraBackendMethods for LlvmCodegenBackend {
     ) {
         unsafe { allocator::codegen(tcx, mods, kind) }
     }
-    fn compile_codegen_unit<'a, 'tcx: 'a>(&self, tcx: TyCtxt<'tcx>, cgu_name: InternedString) {
+    fn compile_codegen_unit<'a, 'tcx>(&self, tcx: TyCtxt<'tcx>, cgu_name: InternedString) {
         base::compile_codegen_unit(tcx, cgu_name);
     }
     fn target_machine_factory(