Swallow IO exceptions

If `DeleteHelper.DeleteGitRepository()` encounteres a `FileNotFoundException` or `DirectoryNotFoundException`, there's no reason for it to blow up.

Author: asbjornu

src/GitTools.Core/GitTools.Core.Shared/IO/Helpers/DeleteHelper.cs

@@ -11,17 +11,29 @@ public static void DeleteGitRepository(string directory)
                 return;
             }
 
-            foreach (var fileName in Directory.GetFiles(directory, "*.*", SearchOption.AllDirectories))
+            try
+            {
+                foreach (var fileName in Directory.GetFiles(directory, "*.*", SearchOption.AllDirectories))
+                {
+                    var fileInfo = new FileInfo(fileName)
+                    {
+                        IsReadOnly = false
+                    };
+
+                    try
+                    {
+                        fileInfo.Delete();
+                    }
+                    catch (FileNotFoundException)
+                    {
+                    }
+                }
+
+                Directory.Delete(directory, true);
+            }
+            catch (DirectoryNotFoundException)
             {
-                var fileInfo = new FileInfo(fileName)
-                {
-                    IsReadOnly = false
-                };
-
-                fileInfo.Delete();
             }
-
-            Directory.Delete(directory, true);
         }
     }
 }