Remove unused Context assoc type from WriteBackendMethods

Author: bjorn3

compiler/rustc_codegen_gcc/src/lib.rs

@@ -210,7 +210,6 @@ impl WriteBackendMethods for GccCodegenBackend {
     type Module = GccContext;
     type TargetMachine = ();
     type ModuleBuffer = ModuleBuffer;
-    type Context = ();
     type ThinData = ();
     type ThinBuffer = ThinBuffer;
 

compiler/rustc_codegen_llvm/src/lib.rs

@@ -170,7 +170,6 @@ impl ExtraBackendMethods for LlvmCodegenBackend {
 impl WriteBackendMethods for LlvmCodegenBackend {
     type Module = ModuleLlvm;
     type ModuleBuffer = back::lto::ModuleBuffer;
-    type Context = llvm::Context;
     type TargetMachine = &'static mut llvm::TargetMachine;
     type ThinData = back::lto::ThinData;
     type ThinBuffer = back::lto::ThinBuffer;

compiler/rustc_codegen_ssa/src/traits/write.rs

@@ -9,7 +9,6 @@ pub trait WriteBackendMethods: 'static + Sized + Clone {
     type Module: Send + Sync;
     type TargetMachine;
     type ModuleBuffer: ModuleBufferMethods;
-    type Context: ?Sized;
     type ThinData: Send + Sync;
     type ThinBuffer: ThinBufferMethods;