Simplify the logic of translate_assert
Simplify the logic of translate_assert

There is no visible need to pass the fallback function through all the
cases of translate_assert. It's makes the code simpler if we keep
the conditional logic at the beginning.

beedub/elixir,joshprice/elixir,kelvinst/elixir,kimshrier/elixir,gfvcastro/elixir,gfvcastro/elixir,antipax/elixir,kimshrier/elixir,elixir-lang/elixir,michalmuskala/elixir,lexmag/elixir,kelvinst/elixir,antipax/elixir,pedrosnk/elixir,ggcampinho/elixir,ggcampinho/elixir,beedub/elixir,pedrosnk/elixir,lexmag/elixir