code: public final void removeValue(@NonNull final String value) {
          Condition.INSTANCE.ensureNotNull(value, "The value may not be null");
  
          if (this.values != null) {
              if (this.values.remove(value)) {
                  if (persistSet(this.values)) {
                      notifyChanged();
                  }
              }
          }
      }
docs: Removes a specific value from the preference. By removing a value, the changes will be
  persisted.
  
  @param value
  The value, which should be removed, as a {@link String}. The value may not be null