ci: drop libghostty-internal builds on Windows

libghostty-internal isn't really supposed to be used in Windows anyway,
so why bother testing it?

.github/workflows/test.yml

@@ -100,7 +100,6 @@ jobs:
       - build-libghostty-vt-android
       - build-libghostty-vt-macos
       - build-libghostty-vt-windows
-      - build-libghostty-windows-gnu
       - build-linux
       - build-linux-libghostty
       - build-nix
@@ -119,7 +118,6 @@ jobs:
       - test-lib-vt
       - test-lib-vt-pkgconfig
       - test-macos
-      - test-windows
       - pinact
       - prettier
       - swiftlint
@@ -956,20 +954,6 @@ jobs:
         working-directory: example/c-vt-static
         run: zig build
 
-  build-libghostty-windows-gnu:
-    runs-on: namespace-profile-ghostty-windows
-    timeout-minutes: 45
-    needs: test
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-
-      - name: Setup Zig
-        uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29 # v2.2.1
-
-      - name: Build libghostty (GNU ABI)
-        run: zig build -Dtarget=native-native-gnu -Dapp-runtime=none
-
   build-linux:
     strategy:
       fail-fast: false
@@ -1708,21 +1692,6 @@ jobs:
       - name: test
         run: nix develop -c zig build test --system ${{ steps.deps.outputs.deps }}
 
-  test-windows:
-    if: github.repository == 'ghostty-org/ghostty' && needs.skip.outputs.skip != 'true'
-    needs: skip
-    runs-on: namespace-profile-ghostty-windows
-    timeout-minutes: 45
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-
-      - name: Setup Zig
-        uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29 # v2.2.1
-
-      - name: Test
-        run: zig build -Dapp-runtime=none test
-
   test-i18n:
     strategy:
       fail-fast: false