In this article, we will show you how to remove an effect in Adobe Illustrator.
Steps

Step 1. Create an object and apply the effect
The example below shows a 3D effect.

Step 2. Click on the object
Follow these steps: Window> Appearance.

Step 3. When the Appearance window appears, click on the effect you want to remove
Then click on the Clear Appearance button (2nd from the left at the bottom of the palette).

Step 4. Your effect has been removed
Just cancel the procedure to get the effect back.