Previously bsd.compiler.mk was not able to detect the compiler type for Ubuntu's /usr/bin/cc unless we were invoking the /usr/bin/gcc symlink. This problem has been fixed by 9c6954329a9285547881ddd60e393b7c55ed30c4 so we can drop the workaround from make.py. Reviewed By: jrtc27 Differential Revision: https://reviews.freebsd.org/D28323