chore(deps): removes useless dependency

Author: huafu

package-lock.json

@@ -1,8 +1,8 @@
 {
   "name": "ts-jest",
-  "version": "23.10.0-beta.0",
+  "version": "23.10.0-beta.1",
   "main": "dist/index.js",
-  "types": "./dist/index.d.ts",
+  "types": "dist/index.d.ts",
   "description": "A preprocessor with sourcemap support to help use Typescript with Jest",
   "scripts": {
     "prebuild": "node scripts/clean-dist.js",
@@ -84,7 +84,6 @@
     "lodash.set": "^4.3.2",
     "npm-run-all": "^4.1.3",
     "prettier": "^1.14.2",
-    "reflect-metadata": "^0.1.12",
     "source-map": "^0.7.3",
     "tslint": "^5.11.0",
     "typescript": "^3.0.3"