Windows fixes

Author: daniel-luberda

source/FFImageLoading.Windows/Cache/FFSourceBindingCache.cs

@@ -41,7 +41,7 @@ public static async Task<StorageFile> GetFileAsync(string path)
                 var filePath = System.IO.Path.GetDirectoryName(path);
                 if (!string.IsNullOrWhiteSpace(filePath) && !(filePath.TrimStart('\\', '/')).StartsWith("Assets"))
                 {
-                    file = await StorageFile.GetFileFromPathAsync(path).ConfigureAwait(false);
+                    file = await StorageFile.GetFileFromPathAsync(path);
                 }
             }
             catch (Exception)

source/FFImageLoading.Windows/Cache/SimpleDiskCache.cs

@@ -129,7 +129,7 @@ protected virtual async Task CleanCallback()
                     {
                         Logger.Debug(string.Format("SimpleDiskCache: Removing expired file {0}", oldCacheEntry.FileName));
                         var file = await cacheFolder.GetFileAsync(oldCacheEntry.FileName);
-                        await file.DeleteAsync().ConfigureAwait(false);
+                        await file.DeleteAsync();
                     }
                     catch
                     {
@@ -281,7 +281,7 @@ public virtual async Task RemoveAsync(string key)
                 try
                 {
                     var file = await cacheFolder.GetFileAsync(oldCacheEntry.FileName);
-                    await file.DeleteAsync().ConfigureAwait(false);
+                    await file.DeleteAsync();
                 }
                 catch
                 {
@@ -310,7 +310,7 @@ public virtual async Task ClearAsync()
                 {
                     try
                     {
-                        await item.DeleteAsync().ConfigureAwait(false);
+                        await item.DeleteAsync();
                     }
                     catch (FileNotFoundException)
                     {