e_mod_effect: do not set e_comp_object's hiding flag in restack,hide effect

e_mod_effect: do not set e_comp_object's hiding flag in restack,hide effect

There was a bug that the window didn't disappeared after restack hiding effect.
For example, the keyboard window was not hidden below case.
1. Start to run a restack,hide effect of keyboard by changing stack
2. Under running effect, hide keyboard window
In this case, hide operation was skipped by intercept_hide function in e_comp_object.
So, the keyboard window could not disappeared.

We fixed this problem.

Change-Id: Ibf70233bf5b22be2b8c608342e85d9290abaa533