CB-14098: Remove unused res folder

[raphinesse]

Platforms affected

All

What does this PR do?

Remove unused icons and splash screens from this template to save 10MiB in every cordova project created from it and every installation of cordova (that's two thirds of cordova's package size).

What testing has been done on this change?

Manual. I can create a new project with this, add platform android and run it. Has no obviously missing assets. Plus, I can confirm that cordova-create never uses this folder for anything.

Checklist

• Reported an issue in the JIRA database
• Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
• Added automated test coverage as appropriate for this change.

[Menardi]

I agree, it looks like the res folder is redundant. An iOS app built on this template is just fine, and has all the default Cordova icons. I'm not sure where they're being taken from, but it's not this res folder.

[raphinesse]

@Menardi Thanks for testing. The former README in this folder says:

Although there are default image resources in a newly-created project, those come from the platform-specific project template, which can generally be found in the platform's template directory.

[shazron]

iOS images are in this bundle, which is in the platform template: https://github.com/apache/cordova-ios/tree/3507af4ac68ed13cfb4d8ecfd0e91e747a9c6875/bin/templates/project/__PROJECT_NAME__/Images.xcassets