remove deprecated npm target.

package.json

@@ -37,6 +37,7 @@
     "zap-dotdot": "node src-script/zap-start.js --logToStdout --zcl ./zcl-builtin/dotdot/library.xml",
     "build-spa": "node src-script/build-spa.js",
     "build-backend": "webpack -c webpack.main.config.js --progress",
+    "regen-ts-type": "node src-script/regen-ts-type.js",
     "renderer-api-regen": "node src-script/renderer-api-regen.js",
     "doc": "jsdoc src-electron src-shared -r -u docs -d ./generated-html/ README.md",
     "apidoc": "jsdoc2md src-shared/**/*.js src-electron/**/*.js > docs/api.md",