Remove admin-panel LESS stylesheet (#26797)

GitOrigin-RevId: e289ed2c82623034785d08564e01340828f7b91c

services/web/frontend/stylesheets/main-style.less

@@ -138,7 +138,6 @@
 // module styles
 // TODO: find a way for modules to add styles dynamically
 @import 'modules/symbol-palette.less';
-@import 'modules/admin-panel.less';
 @import 'modules/git-bridge-modal.less';
 @import 'modules/group-settings.less';
 @import 'modules/onboarding.less';

services/web/frontend/stylesheets/modules/admin-panel.less

@@ -1,37 +0,0 @@
-.admin-panel-pagination {
-  display: flex;
-  justify-content: center;
-}
-
-.phase-badge {
-  display: inline-block;
-  font-size: @font-size-small;
-  white-space: nowrap;
-  text-align: center;
-  padding: 3px 7px;
-  &:extend(.label);
-  &:extend(.label-info);
-}
-
-.scrollable {
-  max-height: calc(100vh - 40vh);
-  overflow-y: auto;
-}
-
-.hr-sect {
-  display: flex;
-  flex-basis: 100%;
-  align-items: center;
-  color: rgba(0, 0, 0, 0.35);
-  margin: 8px 0;
-}
-.hr-sect:before,
-.hr-sect:after {
-  content: '';
-  flex-grow: 1;
-  background: rgba(0, 0, 0, 0.35);
-  height: 1px;
-  font-size: 0;
-  line-height: 0;
-  margin: 0 8px;
-}