[code-style] IJPL-189891 IJPL-189896 default CodeStyleSettings are updated when unregistering custom settings

GitOrigin-RevId: 25746514a98f62aba5275fa34ac6bc927a3a0f86

platform/code-style-api/src/com/intellij/psi/codeStyle/CodeStyleSettingsManager.java

@@ -269,6 +269,7 @@ public class CodeStyleSettingsManager implements PersistentStateComponentWithMod
   public final void unregisterCustomSettings(@NotNull Collection<? extends CodeStyleSettings> allSettings,
                                              @NotNull CustomCodeStyleSettingsFactory provider) {
     allSettings.forEach(settings -> settings.removeCustomSettings(provider));
+    CodeStyleSettings.getDefaults().removeCustomSettings(provider);
     notifyCodeStyleSettingsChanged();
   }