winrt: Disabled Windows Phone 8.0 builds.

It lacks APIs we need for WASAPI and probably no one will miss it. 8.1 is
still supported.

build-scripts/winrtbuild.ps1

@@ -211,9 +211,11 @@ function Build-SDL-WinRT-Variant
 $DidAnyDLLBuildFail = $false
 $DidAnyNugetBuildFail = $false
 
+# Ryan disabled WP8.0, because it doesn't appear to have mmdeviceapi.h that SDL_wasapi needs.
+# My assumption is that no one will miss this, but send patches otherwise!  --ryan.
 # Build for Windows Phone 8.0, via VC++ 2012:
-if ( ! (Build-SDL-WinRT-Variant "SDL" "v110_wp80" "ARM"))   { $DidAnyDLLBuildFail = $true }
-if ( ! (Build-SDL-WinRT-Variant "SDL" "v110_wp80" "Win32")) { $DidAnyDLLBuildFail = $true }
+#if ( ! (Build-SDL-WinRT-Variant "SDL" "v110_wp80" "ARM"))   { $DidAnyDLLBuildFail = $true }
+#if ( ! (Build-SDL-WinRT-Variant "SDL" "v110_wp80" "Win32")) { $DidAnyDLLBuildFail = $true }
 
 # Build for Windows Phone 8.1, via VC++ 2013:
 if ( ! (Build-SDL-WinRT-Variant "SDL" "v120_wp81" "ARM"))   { $DidAnyDLLBuildFail = $true }