find and delete string for regular positioning field

could someone tell me where I can find and delete this string?
I need it to move NoCaptcha ReCaptcha Woocommerce.

<div class="g-recaptcha" data-sitekey="6LcXIhITAAAAAAzLLsgyZsaEQbWPFhACHltlCSnF" data-theme="light"><div><div style="width: 304px; height: 78px;"><iframe src="https://www.google.com/recaptcha/api2/anchor?k=6LcXIhITAAAAAAzLLsgyZsaEQbWPFhACHltlCSnF&co=aHR0cDovL3d3dy5ldXJvc3Vkc3JsLml0Ojgw&hl=it&v=r20151117130340&theme=light&size=normal" title="widget recaptcha" width="304" height="78" role="presentation" frameborder="0" scrolling="no"></iframe></div><textarea id="g-recaptcha-response" name="g-recaptcha-response" class="g-recaptcha-response" style="width: 250px; height: 40px; border: 1px solid #c1c1c1; margin: 10px 25px; padding: 0px; resize: none; display: none; "></textarea></div></div>

in particular this: style=”width: 304px; height: 78px;

in my login/register page

https://wordpress.org/plugins/no-captcha-recaptcha-for-woocommerce/