fix questionnaireButton ui at walletVC

@@ -175,6 +175,7 @@ extension UIView {
         gradient.colors = colours.map { $0.cgColor }
         gradient.locations = locations
         gradient.cornerRadius = cornerRadius
+        gradient.name = "linearGradientLayer"
         self.layer.insertSublayer(gradient, at: 0)
     }
 
@@ -185,6 +186,7 @@ extension UIView {
         gradient.startPoint = orientation.startPoint
         gradient.endPoint = orientation.endPoint
         gradient.cornerRadius = cornerRadius
+        gradient.name = "linearGradientLayer"
         self.layer.insertSublayer(gradient, at: 0)
     }
 }

@@ -218,6 +218,12 @@ import SwiftEventBus
                 questionnaireButton.layer.shadowRadius = 0.0
                 questionnaireButton.layer.masksToBounds = false
             } else {
+                for layer in (questionnaireButton.layer.sublayers ?? []) {
+                    if(layer.name == "linearGradientLayer"){
+                        layer.removeFromSuperlayer()
+                    }
+                }
+                questionnaireButton.layer.shadowOpacity = 0.0;
                 questionnaireButton.setTitle("+Προτιμήσεις", for: .normal)
                 questionnaireButton.titleLabel?.font = UIFont.systemFont(ofSize: 13, weight: .semibold)
                 questionnaireButton.setTitleColor(UIColor(red: 0.31, green: 0.62, blue: 0.18, alpha: 1.00), for: .normal)