[mlir][LLVMIR][NFC] Remove duplicate getUnnamedAddrAttrName uses in op printers (#146090)

Fix `UnnamedAddrAttrName` being inserted twice into the `elidedAttrs`
list for the attribute dictionary printer in `GlobalOp` and `AliasOp`
print functions.

mlir/lib/Dialect/LLVMIR/IR/LLVMDialect.cpp

@@ -2245,8 +2245,7 @@ void GlobalOp::print(OpAsmPrinter &p) {
                            getGlobalTypeAttrName(), getConstantAttrName(),
                            getValueAttrName(), getLinkageAttrName(),
                            getUnnamedAddrAttrName(), getThreadLocal_AttrName(),
-                           getVisibility_AttrName(), getComdatAttrName(),
-                           getUnnamedAddrAttrName()});
+                           getVisibility_AttrName(), getComdatAttrName()});
 
   // Print the trailing type unless it's a string global.
   if (llvm::dyn_cast_or_null<StringAttr>(getValueOrNull()))
@@ -2588,7 +2587,7 @@ void AliasOp::print(OpAsmPrinter &p) {
                           {SymbolTable::getSymbolAttrName(),
                            getAliasTypeAttrName(), getLinkageAttrName(),
                            getUnnamedAddrAttrName(), getThreadLocal_AttrName(),
-                           getVisibility_AttrName(), getUnnamedAddrAttrName()});
+                           getVisibility_AttrName()});
 
   // Print the trailing type.
   p << " : " << getType() << ' ';