Fix broken merge

Author: bjorn3

src/abi/mod.rs

@@ -58,9 +58,6 @@ pub(crate) fn conv_to_call_conv(
         // Cranelift doesn't currently have anything for this.
         CanonAbi::RustPreserveNone => default_call_conv,
 
-        // Cranelift doesn't currently have anything for this.
-        CanonAbi::RustPreserveNone => default_call_conv,
-
         // Functions with this calling convention can only be called from assembly, but it is
         // possible to declare an `extern "custom"` block, so the backend still needs a calling
         // convention for declaring foreign functions.