OEL-1367: Remove attributes with placeholder is already in the form with the placeholder settings.

templates/overrides/search/input--textfield--header--oe-whitelabel-search-form.html.twig

@@ -11,6 +11,5 @@
     'bcl-search-form__input',
     attributes.hasClass('error') ? 'is-invalid',
   ])
-  .setAttribute('placeholder', 'Search'|t)
   .removeClass('form-text') %}
 

templates/overrides/search/input--textfield--navigation-right--oe-whitelabel-search-form.html.twig

@@ -13,6 +13,5 @@
     'rounded-start',
     attributes.hasClass('error') ? 'is-invalid',
   ])
-  .setAttribute('placeholder', 'Search'|t)
   .removeClass('form-text') %}