Revert "Change existing keychain entry"

This reverts commit 9cc863ae79b4bf2d26ba58aa122e0d43060b204d.

src/main/java/org/cryptomator/ui/vaultoptions/MasterkeyOptionsController.java

@@ -1,9 +1,7 @@
 package org.cryptomator.ui.vaultoptions;
 
-import org.cryptomator.common.Passphrase;
 import org.cryptomator.common.keychain.KeychainManager;
 import org.cryptomator.common.vaults.Vault;
-import org.cryptomator.integrations.keychain.KeychainAccessException;
 import org.cryptomator.ui.changepassword.ChangePasswordComponent;
 import org.cryptomator.ui.common.FxController;
 import org.cryptomator.ui.forgetpassword.ForgetPasswordComponent;
@@ -12,7 +10,6 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import javax.inject.Inject;
-import javafx.beans.Observable;
 import javafx.beans.property.SimpleBooleanProperty;
 import javafx.beans.value.ObservableValue;
 import javafx.fxml.FXML;
@@ -52,32 +49,6 @@ public class MasterkeyOptionsController implements FxController {
 	@FXML
 	public void initialize() {
 		useTouchIDheckbox.selectedProperty().bindBidirectional(vault.getVaultSettings().useTouchID);
-		useTouchIDheckbox.selectedProperty().addListener(this::useTouchIDheckboxToggled);
-	}
-
-	/**
-	 * Existing keychain items get changed, depending on an additional user authentication is required or not.
-	 * This is needed as the user authentication is tied to the keychain itself.
-	 *
-	 * @param observable
-	 * @param wasSet
-	 * @param isSet		 <code>true</code>, when the checkbox is ticked, <code>false</code> otherwise
-	 */
-	private void useTouchIDheckboxToggled(Observable observable, Boolean wasSet, Boolean isSet) {
-		try {
-			var vautID = vault.getId();
-			if (keychain.isPassphraseStored(vautID)) {
-				var passphrase = keychain.loadPassphrase(vautID);
-				keychain.deletePassphrase(vautID);
-				if (isSet) {
-					keychain.storePassphraseForAuthenticatedUser(vautID, vault.getId(), new Passphrase(passphrase));
-				} else {
-					keychain.storePassphrase(vautID, vault.getId(), new Passphrase(passphrase));
-				}
-			}
-		} catch (KeychainAccessException e) {
-			LOG.error("Failed to migrate item in system keychain due to access control change.", e);
-		}
 	}
 
 	@FXML