Remove setup files after installation

scripts/Common/OS/install.fish

@@ -59,7 +59,15 @@ else
     end
 
     and runHook postInstall || true
-    echo "The installation finished successfully!"
+    and sudo git config remove-section --system safe
+
+    and begin
+        set -l projectPath (realpath "$(status dirname)/../../..")
+        cd (dirname "$projectPath")
+        sudo rm -rf "$projectPath"
+    end
+
+    and echo "The installation finished successfully!"
     and echo "This machine will reboot in 5 seconds..."
     and echo "Press CTRL-C to abort..."
     and sleep 5