Always install VS Code dependencies

This fixes the case where the script is killed before all the
dependencies were fully installed.

Author: code-asher

scripts/build.ts

@@ -169,13 +169,9 @@ class Builder {
 			});
 		}
 
-		if (fs.existsSync(path.join(vscodeSourcePath, "node_modules"))) {
-			this.log("Using existing VS Code node_modules");
-		} else {
-			await this.task("Installing VS Code dependencies", () => {
-				return util.promisify(cp.exec)("yarn", { cwd: vscodeSourcePath });
-			});
-		}
+		await this.task("Installing VS Code dependencies", () => {
+			return util.promisify(cp.exec)("yarn", { cwd: vscodeSourcePath });
+		});
 
 		if (fs.existsSync(path.join(vscodeSourcePath, ".build/extensions"))) {
 			this.log("Using existing built-in-extensions");