Revert "misc: chore: Remove redundant code"

This reverts commit 05a88ccc94.

src/Ryujinx.HLE/FileSystem/ContentManager.cs

@@ -698,6 +698,8 @@ namespace Ryujinx.HLE.FileSystem
                     {
                         throw new InvalidFirmwarePackageException("Update not found in xci file.");
                     }
+                default:
+                    break;
             }
 
             SystemVersion VerifyAndGetVersionDirectory(string firmwareDirectory)

src/Ryujinx.HLE/FileSystem/VirtualFileSystem.cs

@@ -38,7 +38,7 @@ namespace Ryujinx.HLE.FileSystem
 
         private readonly ConcurrentDictionary<ulong, Stream> _romFsByPid;
 
-        private static bool _isInitialized;
+        private static bool _isInitialized = false;
 
         public static VirtualFileSystem CreateInstance()
         {