Revert "fix in carprotocol.cpp"

This reverts commit 8d3ba5ee5b1555c0e7fd2cfb10ee1dd148165d65.
Merge branch 'master' of https://github.com/fjanssen/Car2x
Merge branch 'master' of https://github.com/fjanssen/Car2x
Car2x_communication builds with CarMessages