Remove tslint-config as dep to monorepo-scripts to avoid circular dependency. Since monorepo-scripts is only expected to be used from within the monorepo, we reference tslint-config w/ a relative path

packages/monorepo-scripts/package.json

@@ -28,7 +28,6 @@
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/monorepo-scripts/README.md",
     "comment": "// We purposefully use an older version of tslint-config here to avoid creating an import cycle",
     "devDependencies": {
-        "@0xproject/tslint-config": "0.4.13",
         "@types/glob": "^5.0.33",
         "@types/node": "^8.0.53",
         "@types/opn": "^5.1.0",

packages/monorepo-scripts/tslint.json

@@ -1,3 +1,3 @@
 {
-    "extends": ["@0xproject/tslint-config"]
+    "extends": ["../tslint-config"]
 }