Remove Swift files in multi-language-autodetect workflow on Linux

Allows us to test autodetection on Linux, too

Author: mbg

.github/workflows/__multi-language-autodetect.yml

@@ -9,11 +9,21 @@ steps:
     if: runner.os == 'macOS' && matrix.version != 'nightly-latest'
     run: sudo xcode-select -s "/Applications/Xcode_16.app"
 
+  - name: Remove swift files on Linux
+    if: runner.os == 'Linux'
+    run: |
+      set -e
+      rm -r codeql-swift-autobuild-test
+      rm -r codeql-swift-autobuild-test.xcodeproj
+      rm -r Sources
+      rm -r swift-custom-build
+      rm Package.swift
+
   - uses: ./../action/init
     id: init
     with:
       db-location: "${{ runner.temp }}/customDbLocation"
-      languages: ${{ runner.os == 'Linux' && 'cpp,csharp,go,java,javascript,python,ruby' || '' }}
+      languages: ""
       tools: ${{ steps.prepare-test.outputs.tools-url }}
 
   - name: Build code