ctools升级后自动引用了/sites/default/files/ctools/css/***.css?ntoqt1

文件里的CSS如下，请问如何解决？关闭引用？

.panels-flexible-8 .panels-flexible-region {
  padding: 0;
}
.panels-flexible-8 .panels-flexible-region-inside {
  padding-right: 0.5em;
  padding-left: 0.5em;
}
.panels-flexible-8 .panels-flexible-region-inside-first {
  padding-left: 0;
}
.panels-flexible-8 .panels-flexible-region-inside-last {
  padding-right: 0;
}
.panels-flexible-8 .panels-flexible-column {
  padding: 0;
}
.panels-flexible-8 .panels-flexible-column-inside {
  padding-right: 0.5em;
  padding-left: 0.5em;
}
.panels-flexible-8 .panels-flexible-column-inside-first {
  padding-left: 0;
}
.panels-flexible-8 .panels-flexible-column-inside-last {
  padding-right: 0;
}
.panels-flexible-8 .panels-flexible-row {
  padding: 0 0 0.5em 0;
  margin: 0;
}
.panels-flexible-8 .panels-flexible-row-last {
  padding-bottom: 0;
}
.panels-flexible-column-8-main {
  float: left;
  width: 99.0000%;
}
.panels-flexible-8-inside {
  padding-right: 0px;
}
.panels-flexible-8 {
  width: auto;
}
.panels-flexible-region-8-row_top {
  float: left;
  width: 99.0000%;
}
.panels-flexible-row-8-4-inside {
  padding-right: 0px;
}
.panels-flexible-region-8-row_one {
  float: left;
  width: 99.0000%;
}
.panels-flexible-row-8-3-inside {
  padding-right: 0px;
}
.panels-flexible-region-8-row_two {
  float: left;
  width: 99.0000%;
}
.panels-flexible-row-8-2-inside {
  padding-right: 0px;
}
.panels-flexible-region-8-row_three {
  float: left;
  width: 99.0000%;
}
.panels-flexible-row-8-1-inside {
  padding-right: 0px;
}
.panels-flexible-region-8-center {
  float: left;
  width: 99.0000%;
}
.panels-flexible-row-8-main-row-inside {
  padding-right: 0px;
}
.panels-flexible-region-8-row_five {
  float: left;
  width: 99.0000%;
}
.panels-flexible-row-8-5-inside {
  padding-right: 0px;
}
.panels-flexible-region-8-row_six {
  float: left;
  width: 99.0000%;
}
.panels-flexible-row-8-6-inside {
  padding-right: 0px;
}
.panels-flexible-region-8-row_seven {
  float: left;
  width: 99.0000%;
}
.panels-flexible-row-8-7-inside {
  padding-right: 0px;
}
.panels-flexible-region-8-row_eight {
  float: left;
  width: 99.0000%;
}
.panels-flexible-row-8-8-inside {
  padding-right: 0px;
}
.panels-flexible-region-8-row_nine {
  float: left;
  width: 99.0000%;
}
.panels-flexible-row-8-9-inside {
  padding-right: 0px;
}