Revert "fix crashes created by "make efl_loop_promise_new a function""

This serie of patch didn't address the core problem in the design of the
ownership of eina_promise_data_{set/get} usage. It is also redundant with
other infrastructure in eina_promise and so not necessary completely.

This reverts commit de2ec0559b01dba7919503955cc47c1c5fcd0f97.

Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Differential Revision: https://phab.enlightenment.org/D7573