CI: Remove unused scripts

.github/workflows/linux-build.yml.disabled

@@ -1,38 +0,0 @@
-name: Linux Build
-
-on:
-  pull_request:
-  push:
-    branches:
-      - master
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v1
-
-    - name: Install packages
-      shell: bash
-      run: |
-        sudo apt-get update
-        sudo apt-get -y install libsdl2-dev libgtk2.0-dev
-
-    - name: Compile debug build
-      shell: bash
-      run: |
-        mkdir build-debug
-        cd build-debug
-        cmake -DCMAKE_BUILD_TYPE=Debug -DBUILD_QT_FRONTEND=OFF ..
-        make
-        
-    - name: Compile release build
-      shell: bash
-      run: |
-        mkdir build-release
-        cd build-release
-        cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_QT_FRONTEND=OFF ..
-        make
-

.github/workflows/windows-build.yml.disabled

@@ -1,38 +0,0 @@
-name: Windows Build
-
-on:
-  pull_request:
-  push:
-    branches:
-      - master
-
-jobs:
-  build:
-
-    runs-on: windows-2019
-
-    steps:
-    - uses: actions/checkout@v1
-      with:
-        submodules: true
-
-    - name: Compile release build
-      shell: cmd
-      run: |
-        call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" x64
-        msbuild duckstation.sln -t:Build -p:Platform=x64;Configuration=ReleaseLTCG
-        
-    - name: Remove extra bloat before archiving
-      shell: cmd
-      run: |
-        del /Q bin\x64\*.pdb
-        del /Q bin\x64\*.exp
-        del /Q bin\x64\*.lib
-        del /Q bin\x64\*.iobj
-        del /Q bin\x64\*.ipdb
-
-    - name: Upload release archive
-      uses: actions/upload-artifact@v1
-      with:
-        name: "duckstation-windows-x64-release"
-        path: ".\\bin\\x64"