Removing unused variable and fix typo (#6265)

Signed-off-by: amzn-mike <80125227+amzn-mike@users.noreply.github.com>

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabDomUtils.cpp

@@ -150,7 +150,7 @@ namespace AzToolsFramework
                 return result.GetOutcome() == AZ::JsonSerializationResult::Outcomes::Success;
             }
 
-            // some assets may come in from the JSON serialzier with no AssetID, but have an asset hint
+            // some assets may come in from the JSON serializer with no AssetID, but have an asset hint
             // this attempts to fix up the assets using the assetHint field
             void FixUpInvalidAssets(AZ::Data::Asset<AZ::Data::AssetData>& asset)
             {

Code/Framework/AzToolsFramework/Tests/Prefab/PrefabAssetFixupTests.cpp

@@ -176,7 +176,6 @@ namespace UnitTest
     TEST_F(PrefabFixupTest, Test_LoadInstanceFromPrefabDom_Overload3)
     {
         Instance instance;
-        AZStd::vector<AZ::Data::Asset<AZ::Data::AssetData>> referencedAssets;
         Instance::EntityList entityList;
         (PrefabDomUtils::LoadInstanceFromPrefabDom(instance, entityList, m_prefabDom));