delete _user_growi.scss

src/client/styles/scss/_user_growi.scss

@@ -1,5 +0,0 @@
-.growi .user-page {
-  .revision-toc {
-    position: sticky;
-  }
-}

src/client/styles/scss/style-app.scss

@@ -57,7 +57,6 @@
 @import 'tag';
 @import 'toc';
 @import 'user';
-@import 'user_growi';
 @import 'staff_credit';
 @import 'waves';
 @import 'wiki';