remove unused USE_BOOST_UNITTEST CMake variable (again!) (#4089)
remove unused USE_BOOST_UNITTEST CMake variable (again!) (#4089)


arangodb/arangodb,Simran-B/arangodb,fceller/arangodb,graetzer/arangodb,Simran-B/arangodb,fceller/arangodb,arangodb/arangodb,arangodb/arangodb,graetzer/arangodb,fceller/arangodb,arangodb/arangodb,graetzer/arangodb,Simran-B/arangodb,Simran-B/arangodb,Simran-B/arangodb,fceller/arangodb,graetzer/arangodb,fceller/arangodb,fceller/arangodb,arangodb/arangodb,graetzer/arangodb,wiltonlazary/arangodb,fceller/arangodb,wiltonlazary/arangodb,graetzer/arangodb,Simran-B/arangodb,fceller/arangodb,Simran-B/arangodb,Simran-B/arangodb,wiltonlazary/arangodb,arangodb/arangodb,Simran-B/arangodb,arangodb/arangodb,graetzer/arangodb,wiltonlazary/arangodb,fceller/arangodb,wiltonlazary/arangodb,arangodb/arangodb,wiltonlazary/arangodb,graetzer/arangodb,graetzer/arangodb,fceller/arangodb,graetzer/arangodb,Simran-B/arangodb,graetzer/arangodb,wiltonlazary/arangodb,graetzer/arangodb,wiltonlazary/arangodb,graetzer/arangodb,graetzer/arangodb