Get rid of `python -m profila setup` if possible

[itamarst]

Newer versions of gdb don't work with Numba (numba/numba#9817). We get around that by downloading gdb v12, but it would be nice to just use the system gdb, somehow. If the Numba issue gets fixed that may suffice.

[itamarst]

I guess one easy thing to check is if if current gdb is v14 or v16, and just ask for setup if version is 15.