Remove extend from dropdown-menu-toggle

app/assets/stylesheets/framework/dropdowns.scss

@@ -76,6 +76,7 @@
 }
 
 .dropdown-toggle,
+.dropdown-menu-toggle,
 .confidential-merge-request-fork-group .dropdown-toggle {
   padding: 6px 8px 6px 10px;
   background-color: $white;
@@ -131,7 +132,6 @@
 
 // This is double classed to solve a specificity issue with the gitlab ui buttons
 .dropdown-menu-toggle.dropdown-menu-toggle {
-  @extend .dropdown-toggle;
   justify-content: flex-start;
   overflow: hidden;
   padding-right: 25px;

app/assets/stylesheets/startup/startup-dark.scss

@@ -198,22 +198,6 @@ h1 {
 .dropdown {
   position: relative;
 }
-.dropdown-menu-toggle {
-  white-space: nowrap;
-}
-.dropdown-menu-toggle::after {
-  display: inline-block;
-  margin-left: 0.255em;
-  vertical-align: 0.255em;
-  content: "";
-  border-top: 0.3em solid;
-  border-right: 0.3em solid transparent;
-  border-bottom: 0;
-  border-left: 0.3em solid transparent;
-}
-.dropdown-menu-toggle:empty::after {
-  margin-left: 0;
-}
 .dropdown-menu {
   position: absolute;
   top: 100%;
@@ -466,9 +450,6 @@ a {
 .hide {
   display: none;
 }
-.dropdown-menu-toggle::after {
-  display: none;
-}
 .badge:not(.gl-badge) {
   padding: 4px 5px;
   font-size: 12px;
@@ -548,7 +529,7 @@ body {
   border-radius: 0.25rem;
   white-space: nowrap;
 }
-.no-outline.dropdown-menu-toggle {
+.dropdown-menu-toggle.no-outline {
   outline: 0;
 }
 .dropdown-menu-toggle.dropdown-menu-toggle {

app/assets/stylesheets/startup/startup-general.scss

@@ -178,22 +178,6 @@ h1 {
 .dropdown {
   position: relative;
 }
-.dropdown-menu-toggle {
-  white-space: nowrap;
-}
-.dropdown-menu-toggle::after {
-  display: inline-block;
-  margin-left: 0.255em;
-  vertical-align: 0.255em;
-  content: "";
-  border-top: 0.3em solid;
-  border-right: 0.3em solid transparent;
-  border-bottom: 0;
-  border-left: 0.3em solid transparent;
-}
-.dropdown-menu-toggle:empty::after {
-  margin-left: 0;
-}
 .dropdown-menu {
   position: absolute;
   top: 100%;
@@ -446,9 +430,6 @@ a {
 .hide {
   display: none;
 }
-.dropdown-menu-toggle::after {
-  display: none;
-}
 .badge:not(.gl-badge) {
   padding: 4px 5px;
   font-size: 12px;
@@ -528,7 +509,7 @@ body {
   border-radius: 0.25rem;
   white-space: nowrap;
 }
-.no-outline.dropdown-menu-toggle {
+.dropdown-menu-toggle.no-outline {
   outline: 0;
 }
 .dropdown-menu-toggle.dropdown-menu-toggle {

ee/app/assets/stylesheets/startup/startup-dark.scss

@@ -198,22 +198,6 @@ h1 {
 .dropdown {
   position: relative;
 }
-.dropdown-menu-toggle {
-  white-space: nowrap;
-}
-.dropdown-menu-toggle::after {
-  display: inline-block;
-  margin-left: 0.255em;
-  vertical-align: 0.255em;
-  content: "";
-  border-top: 0.3em solid;
-  border-right: 0.3em solid transparent;
-  border-bottom: 0;
-  border-left: 0.3em solid transparent;
-}
-.dropdown-menu-toggle:empty::after {
-  margin-left: 0;
-}
 .dropdown-menu {
   position: absolute;
   top: 100%;
@@ -466,9 +450,6 @@ a {
 .hide {
   display: none;
 }
-.dropdown-menu-toggle::after {
-  display: none;
-}
 .badge:not(.gl-badge) {
   padding: 4px 5px;
   font-size: 12px;
@@ -548,7 +529,7 @@ body {
   border-radius: 0.25rem;
   white-space: nowrap;
 }
-.no-outline.dropdown-menu-toggle {
+.dropdown-menu-toggle.no-outline {
   outline: 0;
 }
 .dropdown-menu-toggle.dropdown-menu-toggle {

ee/app/assets/stylesheets/startup/startup-general.scss

@@ -178,22 +178,6 @@ h1 {
 .dropdown {
   position: relative;
 }
-.dropdown-menu-toggle {
-  white-space: nowrap;
-}
-.dropdown-menu-toggle::after {
-  display: inline-block;
-  margin-left: 0.255em;
-  vertical-align: 0.255em;
-  content: "";
-  border-top: 0.3em solid;
-  border-right: 0.3em solid transparent;
-  border-bottom: 0;
-  border-left: 0.3em solid transparent;
-}
-.dropdown-menu-toggle:empty::after {
-  margin-left: 0;
-}
 .dropdown-menu {
   position: absolute;
   top: 100%;
@@ -446,9 +430,6 @@ a {
 .hide {
   display: none;
 }
-.dropdown-menu-toggle::after {
-  display: none;
-}
 .badge:not(.gl-badge) {
   padding: 4px 5px;
   font-size: 12px;
@@ -528,7 +509,7 @@ body {
   border-radius: 0.25rem;
   white-space: nowrap;
 }
-.no-outline.dropdown-menu-toggle {
+.dropdown-menu-toggle.no-outline {
   outline: 0;
 }
 .dropdown-menu-toggle.dropdown-menu-toggle {