If RemoteRunnable doesn't contains BuildableReference XcodeProj removes xcscheme file

[subdan]

What 🌱

If a *.xcscheme contains RemoteRunnable tag without nested BuildableReference tag XcodeProj remove this file from .xcodeproj directory.

<RemoteRunnable
         runnableDebuggingMode = "1"
         BundleIdentifier = "me.ava.Ava-Staging"
         RemotePath = "/var/containers/Bundle/Application/018F0933-05E8-4359-9955-39E0523C4246/Ava.app">
</RemoteRunnable>

Proposal 🎉

Inside XCScheme+Runnable.swift make buildableReference property optional.

public var buildableReference: BuildableReference?

Also replace the following line:

element.addChild(buildableReference.xmlElement())

with the next one:

if let buildableReference = buildableReference {
    element.addChild(buildableReference.xmlElement())
}

I will make a PR...