bloom-filters: fix tests on 64-bit machines
bloom-filters: fix tests on 64-bit machines

Lose the test that might actually create a very large bit-array and use
a number of elements that will be big enough, whatever the platform.
Now tested on a 64-bit machine.

mcandre/factor,erg/factor,ceninan/factor,mcandre/factor,littledan/Factor,mcandre/factor,littledan/Factor,erg/factor,kingcons/factor,ceninan/factor,kingcons/factor,erg/factor,cataska/factor,littledan/Factor,kingcons/factor,erg/factor,seckar/factor,mcandre/factor,ceninan/factor,mcandre/factor,ceninan/factor,erg/factor,cataska/factor,kingcons/factor,seckar/factor,littledan/Factor,seckar/factor,mcandre/factor,cataska/factor,cataska/factor,erg/factor,mcandre/factor,erg/factor