fix(buttons): remove notifications pop-up buttons from linked style

Author: checkybox

theme/parts/buttons.css

@@ -239,8 +239,7 @@ menulist,
 #context-navigation menuitem:not(:last-of-type),
 .findbar-container toolbarbutton.findbar-find-previous,
 .findbar-button:not(:last-of-type),
-.search-panel-one-offs .searchbar-engine-one-off-item:not(:last-child),
-.popup-notification-secondary-button:not([dropmarkerhidden="true"]):not(#hack) {
+.search-panel-one-offs .searchbar-engine-one-off-item:not(:last-child) {
 	border-start-end-radius: 0 !important;
 	border-end-end-radius: 0 !important;
 	border-right-width: 0 !important;
@@ -253,8 +252,7 @@ menulist,
 .findbar-container toolbarbutton.findbar-find-previous,
 .findbar-container toolbarbutton.findbar-find-next,
 .findbar-button:not(:first-of-type),
-.search-panel-one-offs .searchbar-engine-one-off-item:not(:first-child),
-.popup-notification-dropmarker:not(#hack) {
+.search-panel-one-offs .searchbar-engine-one-off-item:not(:first-child) {
 	border-end-start-radius: 0 !important;
 	border-start-start-radius: 0 !important;
 	margin-inline-start: 0 !important;