#wpadminbar #wp-admin-bar-search,
#wpadminbar #adminbarsearch,
#wpadminbar #adminbar-search {
  display: none !important;
  visibility: hidden !important;
  width: 0 !important;
  height: 0 !important;
  min-width: 0 !important;
  min-height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  overflow: hidden !important;
}

#wpadminbar input,
#wpadminbar input[type="text"],
#wpadminbar input[type="search"],
#wpadminbar input[type="submit"],
#wpadminbar button {
  min-height: 0 !important;
  height: auto !important;
  width: auto !important;
  padding: 0 !important;
  margin: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  transform: none !important;
}