clion/options · ml.inline.completion.xml

<application>
  <component name="MLCompletionState">
    <option name="multiLineAllowed" value="false" />
    <option name="inlineHintState">
      <InplaceEditorHintState>
        <option name="shouldRender" value="false" />
      </InplaceEditorHintState>
    </option>
  </component>
</application>