Fix comments

Author: bcardosolopes

mlir/lib/Target/LLVMIR/ModuleTranslation.cpp

@@ -1268,7 +1268,7 @@ LogicalResult ModuleTranslation::convertAliases() {
                                 ? llvm::GlobalAlias::GeneralDynamicTLSModel
                                 : llvm::GlobalAlias::NotThreadLocal);
 
-    // Note there is no need to steup the comdat because GlobalAlias calls into
+    // Note there is no need to setup the comdat because GlobalAlias calls into
     // the aliasee comdat information automatically.
 
     if (op.getUnnamedAddr().has_value())
@@ -1307,9 +1307,6 @@ LogicalResult ModuleTranslation::convertAliases() {
     if (failed(convertDialectAttributes(op, {})))
       return failure();
 
-  // Debug info (TODO): finally, update the compile units their respective sets
-  // of global aliases created earlier.
-
   return success();
 }