asset/scss/components/_buttons.scss

@@ -1,6 +1,3 @@
-button {
-  @extend .button;
-}
 button,.button {
   &.small{
     padding: $global-padding*0.5 $global-padding*1.5;
@@ -61,6 +58,3 @@ button,.button {
     border: none;
   }
 }
-.end_of_page_button {
-  @extend .button.small;
-}

asset/scss/global/_omeka.scss

@@ -79,12 +79,6 @@ body:not(.browse) #content {
   border-top: none;
 }
 
-// vertical spacing for bloc elements
-//
-.archive-item-block {
-  margin-bottom: $global-margin * 1;
-}
-
 /* Styles for vertical menu layout */
 
 body.vertical-menu {