remove building of dummy ios-deploy-lib (#448)

diff --git a/package.json b/package.json
index 02be6c5..e59842b 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   },
   "scripts": {
     "preinstall": "./src/scripts/check_reqs.js && xcodebuild",
-    "build-test": "npm run pycompile && xcodebuild -target ios-deploy-lib && xcodebuild test -scheme ios-deploy-tests",
+    "build-test": "npm run pycompile && xcodebuild test -scheme ios-deploy-tests",
     "eslint": "eslint src/scripts/*.js",
     "test": "npm run eslint && npm run build-test",
     "pycompile": "python -m py_compile src/scripts/*.py",