[Windows] A file without `.scale-xyz` qualifier is generated for each SVG

[MartinZikmund]

Current behavior

For each svg file on Windows, all scales get generated + plain .png without the scale-xyz qualifier - this file is redundant, Windows will use the closest scale as the fallback automatically. Same thing should be true for Skia desktop targets

Expected behavior

Remove the unnecessary file without scale qualifier.

How to reproduce it (as minimally and precisely as possible)

Environment

Nuget Package:

Package Version(s):

Affected platform(s):

• iOS
• Android
• WebAssembly
• WebAssembly renders for Xamarin.Forms
• Windows
• Build tasks

Visual Studio:

• 2017 (version: )
• 2019 (version: )
• for Mac (version: )

Relevant plugins:

• Resharper (version: )

Anything else we need to know?