Remove CFBundleExecutable key from resources bundle

[timbaev]

Case

• Use Mantis via Cartage
• Upload build to TestFlight

TestFlight uploading will be failed with error message:

ERROR ITMS-90535: "Unexpected CFBundleExecutable Key. The bundle at 'Payload/ApplicantHH.app/Frameworks/Mantis.framework/Resource.bundle' does not contain a bundle executable. If this bundle intentionally does not contain an executable, consider removing the CFBundleExecutable key from its Info.plist and using a CFBundlePackageType of BNDL. If this bundle is part of a third-party framework, consider contacting the developer of the framework for an update to address this issue."

Solution

Removing CFBundleExecutable from resources bundle, whic was added in prevous PR: #84

[guoyingtao]

Looks good.