Use 'iPhone Developer' as the code signing identity for iOS
Use 'iPhone Developer' as the code signing identity for iOS

Travis has been failing with the error Code Signing Error: VpnExtension has conflicting provisioning settings. VpnExtension is automatically signed for development, but a conflicting code signing identity iPhone Distribution has been manually specified. Set the code signing identity value to "iPhone Developer" in the build settings editor, or switch to manual signing in the project editor.

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