VST Effects: Open each effect only once, when loaded from project file

Folowing change should ensure VST effect is opened just once, once
loaded from project file.

Double opening seems to trace back to commit 184ddc4d1c
from 2006, when this VST effect save / load feature was introduced as new.

Anyway VST effect parameters seems to load corectly in
VstEffectControls::loadSettings, from project file even without double
VST effect opening.

Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>
This commit is contained in:
Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f