Remove unused code in unit tests.

Author: jaclync

WooCommerce/WooCommerceTests/ViewRelated/Settings/POS/POSTabEligibilityCheckerTests.swift

@@ -494,11 +494,6 @@ private extension POSTabEligibilityCheckerTests {
         )
     }
 
-
-    func setupPOSTabVisibility(siteID: Int64, isVisible: Bool?) {
-        eligibilityService.cachedTabVisibility[siteID] = isVisible
-    }
-
     enum Country: String {
         case us = "US:CA"
         case ca = "CA:NS"

WooCommerce/WooCommerceTests/ViewRelated/Settings/POS/POSTabVisibilityCheckerTests.swift

@@ -290,15 +290,6 @@ private extension POSTabVisibilityCheckerTests {
         ].publisher.eraseToAnyPublisher()
     }
 
-    func createWooCommercePlugin(version: String) -> SystemPlugin {
-        SystemPlugin.fake().copy(
-            siteID: siteID,
-            plugin: "woocommerce/woocommerce.php",
-            version: version,
-            active: true
-        )
-    }
-
     func accountWhitelistedInBackend(_ isAllowed: Bool = false) {
         stores.whenReceivingAction(ofType: FeatureFlagAction.self) { action in
             switch action {