Remove AsmDialect::Other

Added in #35174, this was already unused (and new uses have not been introduced
since then).

Author: Mark-Simulacrum

src/librustc_codegen_llvm/llvm/ffi.rs

@@ -384,9 +384,6 @@ pub enum MetadataType {
 #[derive(Copy, Clone)]
 #[repr(C)]
 pub enum AsmDialect {
-    // FIXME: figure out if this variant is needed at all.
-    #[allow(dead_code)]
-    Other,
     Att,
     Intel,
 }

src/rustllvm/RustWrapper.cpp

@@ -388,7 +388,6 @@ LLVMRustBuildAtomicFence(LLVMBuilderRef B, LLVMAtomicOrdering Order,
 }
 
 enum class LLVMRustAsmDialect {
-  Other,
   Att,
   Intel,
 };