Installing via CocoaPods hangs on installing obsolete React 0.11.0

[rnevius]

Description

When attempting to install via CocoaPods via pod install the process hangs and fails at Installing React (0.11.0). The React pod is deprecated and, since React Native already requires React, we should remove this dependency from A0Auth0.podspec.

#136 "fixes" the podspec while simultaneously introducing this bug, for recent versions of React Native.

Prerequisites

• Did you check the documentation?
• Did you check the Auth0 Community?
• Are you reporting this to the correct repository?
• Are there any related or duplicate Issues or PRs for this issue?

Environment

• React Native Auth0 version 1.3.1
• React Native version 0.56.0
• iOS Setup using CocoaPods, as required by the Firebase module for React Native

Reproduction

With Auth0 for React Native installed, simply attempt to pod install from the ios/ directory in an ejected app that uses CocoaPods.

$ pod install
Analyzing dependencies
Fetching podspec for `A0Auth0` from `../node_modules/react-native-auth0`
Downloading dependencies
Installing A0Auth0 (1.3.1)
Using Firebase (5.11.0)
Using FirebaseAnalytics (5.3.0)
Using FirebaseAnalyticsInterop (1.1.0)
Using FirebaseCore (5.1.6)
Using FirebaseInstanceID (3.3.0)
Using FirebaseMessaging (3.2.1)
Using GoogleAppMeasurement (5.3.0)
Using GoogleUtilities (5.3.6)
Using Protobuf (3.6.1)
Installing React (0.11.0)  <-- hangs/fails

[lbalmaceda]

Solved in PR 192.