Drop rebrand_stub (#626)

scripts/electron_afterPack.js

@@ -1,15 +0,0 @@
-const fsProm = require("fs").promises;
-const path = require("path");
-
-exports.default = async function (context) {
-    const { electronPlatformName, appOutDir } = context;
-
-    // Squirrel windows will try to relaunch the app using an executable of the same name as
-    // before in the new version, so will fail if the executable is now called something else.
-    // We add a fake Riot.exe that it can run which runs the real one.
-    // This also gets signed automatically, presumably because electron-build just looks for all
-    // exe files and signs them all...
-    if (electronPlatformName === "win32") {
-        await fsProm.copyFile("build/rebrand_stub/rebrand_stub.exe", path.join(appOutDir, "Riot.exe"));
-    }
-};