Remove several Windows test jobs from pull requests

We're experiencing queuing on GHA by trying to use too many machine resources. A disproportionate chunk of this is coming from Windows and its excessive build permutations.

Android on Windows has been broken for a while - temporarily remove until fixed.

For desktop, remove 7 of the permutations, leaving just one.

Author: anonymous-akorn

.github/workflows/android.yml

@@ -14,15 +14,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        architecture: ["x64",]
-        include:
-        - os: ubuntu-latest
-          architecture: "x64"
-        - os: macos-latest
-          architecture: "x64"
-        - os: windows-latest
-          architecture: "x64"
+        # Windows temporarily removed while broken
+        os: [ubuntu-latest, macos-latest]
+        architecture: ["x64"]
 
     steps:
       - uses: actions/checkout@v2

.github/workflows/desktop.yml

@@ -20,15 +20,11 @@ jobs:
         os: [windows-latest, ubuntu-latest, macos-latest]
         build_type: ["Release", "Debug"]
         architecture: ["x64", "x86"]
-        msvc_runtime: ["static", "dynamic"]
+        msvc_runtime: ["static"]
         python_version: [3.7]
         include:
         - os: windows-latest
           vcpkg_triplet_suffix: "windows-static"
-        - os: windows-latest
-          msvc_runtime: "dynamic"
-
-          vcpkg_triplet_suffix: "windows-static-md"
         - os: ubuntu-latest
           vcpkg_triplet_suffix: "linux"
         - os: macos-latest
@@ -41,6 +37,13 @@ jobs:
           msvc_runtime: "dynamic"
         - os: ubuntu-latest
           msvc_runtime: "dynamic"
+        # Windows currently takes too long. These are (possibly temporary)
+        # exclusions to mitigate queuing issues caused by excessive
+        # work done on GHA on every PR.
+        - os: windows-latest
+          build_type: "Release"
+        - os: windows-latest
+          architecture: "x86"
 
     steps:
       - name: setup Xcode version (macos)