remove chevron from accordion

chevron displays

<div class="accordion" id="accordionExample">


 <div class="accordion-item">
    <h2 class="accordion-header" id="headingOne">
      <button
        class="accordion-button"
        type="button"
        data-mdb-toggle="collapse"
        data-mdb-target="#collapseOne"
        aria-expanded="true"
        aria-controls="collapseOne"
      >
        Accordion Item #1
      </button>
    </h2>
    <div
      id="collapseOne"
      class="accordion-collapse collapse show"
      aria-labelledby="headingOne"
      data-mdb-parent="#accordionExample"
    >
      <div class="accordion-body">
        content area one
      </div>
    </div>
  </div>
  <div class="accordion-item">
    <h2 class="accordion-header" id="headingTwo">
      <button
        class="accordion-button collapsed"
        type="button"
        data-mdb-toggle="collapse"
        data-mdb-target="#collapseTwo"
        aria-expanded="false"
        aria-controls="collapseTwo"
      >
        Accordion Item #2
      </button>
    </h2>
    <div
      id="collapseTwo"
      class="accordion-collapse collapse"
      aria-labelledby="headingTwo"
      data-mdb-parent="#accordionExample"
    >
      <div class="accordion-body">
        content area two
      </div>
    </div>
  </div>
  <div class="accordion-item">
    <h2 class="accordion-header" id="headingThree">
      <button
        class="accordion-button collapsed"
        type="button"
        data-mdb-toggle="collapse"
        data-mdb-target="#collapseThree"
        aria-expanded="false"
        aria-controls="collapseThree"
      >
        Accordion Item #3
      </button>
    </h2>
    <div
      id="collapseThree"
      class="accordion-collapse collapse"
      aria-labelledby="headingThree"
      data-mdb-parent="#accordionExample"
    >
      <div class="accordion-body">
        content area three
      </div>
    </div>
  </div>
</div>