* lang/cpp/src/assuanresult.cpp,
 lang/cpp/src/callbacks.cpp,
 lang/cpp/src/configuration.cpp,
 lang/cpp/src/context.cpp,
 lang/cpp/src/context_glib.cpp,
 lang/cpp/src/context_qt.cpp,
 lang/cpp/src/context_vanilla.cpp,
 lang/cpp/src/data.cpp,
 lang/cpp/src/decryptionresult.cpp,
 lang/cpp/src/defaultassuantransaction.cpp,
 lang/cpp/src/editinteractor.cpp,
 lang/cpp/src/encryptionresult.cpp,
 lang/cpp/src/engineinfo.cpp,
 lang/cpp/src/eventloopinteractor.cpp,
 lang/cpp/src/global.h,
 lang/cpp/src/gpgagentgetinfoassuantransaction.cpp,
 lang/cpp/src/importresult.cpp,
 lang/cpp/src/interfaces/assuantransaction.h,
 lang/cpp/src/key.cpp,
 lang/cpp/src/keygenerationresult.cpp,
 lang/cpp/src/keylistresult.cpp,
 lang/cpp/src/scdgetinfoassuantransaction.cpp,
 lang/cpp/src/signingresult.cpp,
 lang/cpp/src/trustitem.cpp,
 lang/cpp/src/util.h,
 lang/cpp/src/verificationresult.cpp,
 lang/cpp/src/vfsmountresult.cpp: Remove feature checks.