diff --git a/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs b/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs
index 06529c2e4039d..fc1c66b908a9f 100644
--- a/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs
+++ b/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs
@@ -11,22 +11,11 @@
 //! Group nowadays at <https://github.com/rustwasm>.
 
 use super::{wasm_base, Cc, LinkerFlavor, Target};
-use crate::spec::abi::Abi;
 
 pub fn target() -> Target {
     let mut options = wasm_base::options();
     options.os = "unknown".into();
 
-    // This is a default for backwards-compatibility with the original
-    // definition of this target oh-so-long-ago. Once the "wasm" ABI is
-    // stable and the wasm-bindgen project has switched to using it then there's
-    // no need for this and it can be removed.
-    //
-    // Currently this is the reason that this target's ABI is mismatched with
-    // clang's ABI. This means that, in the limit, you can't merge C and Rust
-    // code on this target due to this ABI mismatch.
-    options.default_adjusted_cabi = Some(Abi::Wasm);
-
     options.add_pre_link_args(
         LinkerFlavor::WasmLld(Cc::No),
         &[