Removed productList feature flag from tests

Author: pmusolino

WooCommerce/WooCommerceTests/Mockups/MockFeatureFlagService.swift

@@ -1,22 +1,17 @@
 @testable import WooCommerce
 
 struct MockFeatureFlagService: FeatureFlagService {
-    private let isProductListFeatureOn: Bool
     private let isEditProductsRelease2On: Bool
     private let isEditProductsRelease3On: Bool
 
-    init(isProductListFeatureOn: Bool = true,
-         isEditProductsRelease2On: Bool = false,
+    init(isEditProductsRelease2On: Bool = false,
          isEditProductsRelease3On: Bool = false) {
-        self.isProductListFeatureOn = isProductListFeatureOn
         self.isEditProductsRelease2On = isEditProductsRelease2On
         self.isEditProductsRelease3On = isEditProductsRelease3On
     }
 
     func isFeatureFlagEnabled(_ featureFlag: FeatureFlag) -> Bool {
         switch featureFlag {
-        case .productList:
-            return isProductListFeatureOn
         case .editProductsRelease2:
             return isEditProductsRelease2On
         case .editProductsRelease3: