ee_wayland: Remove spurious manual_render

ee_wayland: Remove spurious manual_render

Summary:
The line prior to this damages the canvas and should result in a render
anyway.

Forcing a manual render here (without regard to the manual_render_set
state) will cause a post render callback to fire for clients that
think they've disabled automatic rendering.

fix T7275

Reviewers: devilhorns

Reviewed By: devilhorns

Subscribers: devilhorns, cedric, #reviewers, #committers, zmike

Tags: #efl

Maniphest Tasks: T7275

Differential Revision: https://phab.enlightenment.org/D6809