eunit: remove application modules from the modules eligible to test
eunit: remove application modules from the modules eligible to test

application modules will be added to the eunit test set automatically, no
need to consider them for inclusion in the test set separately

saleyn/rebar3,vladdu/rebar3,ferd/rebar3,tsloughter/rebar3,benoitc/rebar3,rebar/rebar3,rebar/rebar3,lrascao/rebar3,djnym/rebar3,erlang/rebar3,benoitc/rebar3