Remove linker_is_gnu: true cases as that is now the default.

compiler/rustc_target/src/spec/aarch64_unknown_none.rs

@@ -16,7 +16,6 @@ pub fn target() -> Target {
         executables: true,
         relocation_model: RelocModel::Static,
         disable_redzone: true,
-        linker_is_gnu: true,
         max_atomic_width: Some(128),
         panic_strategy: PanicStrategy::Abort,
         unsupported_abis: super::arm_base::unsupported_abis(),

compiler/rustc_target/src/spec/aarch64_unknown_none_softfloat.rs

@@ -16,7 +16,6 @@ pub fn target() -> Target {
         executables: true,
         relocation_model: RelocModel::Static,
         disable_redzone: true,
-        linker_is_gnu: true,
         max_atomic_width: Some(128),
         panic_strategy: PanicStrategy::Abort,
         unsupported_abis: super::arm_base::unsupported_abis(),

compiler/rustc_target/src/spec/avr_gnu_base.rs

@@ -16,7 +16,6 @@ pub fn target(target_cpu: String) -> Target {
 
             linker: Some("avr-gcc".to_owned()),
             executables: true,
-            linker_is_gnu: true,
             eh_frame_header: false,
             pre_link_args: vec![(LinkerFlavor::Gcc, vec![format!("-mmcu={}", target_cpu)])]
                 .into_iter()

compiler/rustc_target/src/spec/dragonfly_base.rs

@@ -6,7 +6,6 @@ pub fn opts() -> TargetOptions {
         dynamic_linking: true,
         executables: true,
         families: vec!["unix".to_string()],
-        linker_is_gnu: true,
         has_rpath: true,
         position_independent_executables: true,
         relro_level: RelroLevel::Full,

compiler/rustc_target/src/spec/freebsd_base.rs

@@ -6,7 +6,6 @@ pub fn opts() -> TargetOptions {
         dynamic_linking: true,
         executables: true,
         families: vec!["unix".to_string()],
-        linker_is_gnu: true,
         has_rpath: true,
         position_independent_executables: true,
         eliminate_frame_pointer: false, // FIXME 43575

compiler/rustc_target/src/spec/fuchsia_base.rs

@@ -27,7 +27,6 @@ pub fn opts() -> TargetOptions {
         executables: true,
         families: vec!["unix".to_string()],
         is_like_fuchsia: true,
-        linker_is_gnu: true,
         pre_link_args,
         pre_link_objects: crt_objects::new(&[
             (LinkOutputKind::DynamicNoPicExe, &["Scrt1.o"]),

compiler/rustc_target/src/spec/haiku_base.rs

@@ -7,7 +7,6 @@ pub fn opts() -> TargetOptions {
         executables: true,
         families: vec!["unix".to_string()],
         relro_level: RelroLevel::Full,
-        linker_is_gnu: true,
         ..Default::default()
     }
 }

compiler/rustc_target/src/spec/hermit_base.rs

@@ -13,7 +13,6 @@ pub fn opts() -> TargetOptions {
         linker: Some("rust-lld".to_owned()),
         executables: true,
         has_elf_tls: true,
-        linker_is_gnu: true,
         pre_link_args,
         panic_strategy: PanicStrategy::Abort,
         position_independent_executables: true,

compiler/rustc_target/src/spec/hermit_kernel_base.rs

@@ -14,7 +14,6 @@ pub fn opts() -> TargetOptions {
         linker: Some("rust-lld".to_owned()),
         executables: true,
         has_elf_tls: true,
-        linker_is_gnu: true,
         pre_link_args,
         panic_strategy: PanicStrategy::Abort,
         position_independent_executables: true,

compiler/rustc_target/src/spec/linux_base.rs

@@ -6,7 +6,6 @@ pub fn opts() -> TargetOptions {
         dynamic_linking: true,
         executables: true,
         families: vec!["unix".to_string()],
-        linker_is_gnu: true,
         has_rpath: true,
         position_independent_executables: true,
         relro_level: RelroLevel::Full,

compiler/rustc_target/src/spec/linux_kernel_base.rs

@@ -8,7 +8,6 @@ pub fn opts() -> TargetOptions {
         // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved
         stack_probes: StackProbeType::Call,
         eliminate_frame_pointer: false,
-        linker_is_gnu: true,
         position_independent_executables: true,
         needs_plt: true,
         relro_level: RelroLevel::Full,

compiler/rustc_target/src/spec/mipsel_sony_psp.rs

@@ -21,7 +21,6 @@ pub fn target() -> Target {
             cpu: "mips2".to_string(),
             executables: true,
             linker: Some("rust-lld".to_owned()),
-            linker_is_gnu: true,
             relocation_model: RelocModel::Static,
 
             // PSP FPU only supports single precision floats.

compiler/rustc_target/src/spec/netbsd_base.rs

@@ -6,7 +6,6 @@ pub fn opts() -> TargetOptions {
         dynamic_linking: true,
         executables: true,
         families: vec!["unix".to_string()],
-        linker_is_gnu: true,
         no_default_libraries: false,
         has_rpath: true,
         position_independent_executables: true,

compiler/rustc_target/src/spec/openbsd_base.rs

@@ -6,7 +6,6 @@ pub fn opts() -> TargetOptions {
         dynamic_linking: true,
         executables: true,
         families: vec!["unix".to_string()],
-        linker_is_gnu: true,
         has_rpath: true,
         abi_return_struct_as_int: true,
         position_independent_executables: true,

compiler/rustc_target/src/spec/redox_base.rs

@@ -7,7 +7,6 @@ pub fn opts() -> TargetOptions {
         dynamic_linking: true,
         executables: true,
         families: vec!["unix".to_string()],
-        linker_is_gnu: true,
         has_rpath: true,
         position_independent_executables: true,
         relro_level: RelroLevel::Full,

compiler/rustc_target/src/spec/thumbv4t_none_eabi.rs

@@ -28,7 +28,6 @@ pub fn target() -> Target {
         options: TargetOptions {
             linker_flavor: LinkerFlavor::Ld,
             linker: Some("arm-none-eabi-ld".to_string()),
-            linker_is_gnu: true,
 
             // extra args passed to the external assembler (assuming `arm-none-eabi-as`):
             // * activate t32/a32 interworking

compiler/rustc_target/src/spec/vxworks_base.rs

@@ -10,7 +10,6 @@ pub fn opts() -> TargetOptions {
         dynamic_linking: true,
         executables: true,
         families: vec!["unix".to_string()],
-        linker_is_gnu: true,
         has_rpath: true,
         has_elf_tls: true,
         crt_static_default: true,

compiler/rustc_target/src/spec/wasm32_unknown_emscripten.rs

@@ -34,7 +34,6 @@ pub fn target() -> Target {
         // functionality, and a .wasm file.
         exe_suffix: ".js".to_string(),
         linker: None,
-        linker_is_gnu: true,
         is_like_emscripten: true,
         panic_strategy: PanicStrategy::Unwind,
         post_link_args,

compiler/rustc_target/src/spec/windows_gnu_base.rs

@@ -66,7 +66,6 @@ pub fn opts() -> TargetOptions {
         // FIXME(#13846) this should be enabled for windows
         function_sections: false,
         linker: Some("gcc".to_string()),
-        linker_is_gnu: true,
         dynamic_linking: true,
         executables: true,
         dll_prefix: String::new(),

compiler/rustc_target/src/spec/x86_64_fortanix_unknown_sgx.rs

@@ -57,7 +57,6 @@ pub fn target() -> Target {
         vendor: "fortanix".into(),
         linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld),
         executables: true,
-        linker_is_gnu: true,
         linker: Some("rust-lld".to_owned()),
         max_atomic_width: Some(64),
         cpu: "x86-64".into(),