[C++] do not use platform dependencies in joynr-build-cpp.sh
[C++] do not use platform dependencies in joynr-build-cpp.sh

Change-Id: Icb38afddfbb0f636e72dc1ba78b19091cd9b05af

bmwcarit/joynr,clive-jevons/joynr,bmwcarit/joynr,clive-jevons/joynr,bmwcarit/joynr,clive-jevons/joynr,clive-jevons/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,clive-jevons/joynr,bmwcarit/joynr,bmwcarit/joynr,clive-jevons/joynr,bmwcarit/joynr