Bug 1583161 - Remove the border from the FxA avatar in about:logins since it was cropping the avatar and looked odd in Dark mode. r=MattN

Differential Revision: https://phabricator.services.mozilla.com/D48633

--HG--
extra : moz-landing-system : lando

browser/components/aboutlogins/content/components/fxaccounts-button.css

@@ -48,20 +48,11 @@
   background-position: center;
   background-repeat: no-repeat;
   background-size: cover;
-  border: 1px solid var(--in-content-border-color);
   border-radius: 1000px;
   width: 32px;
   height: 32px;
 }
 
-.fxaccounts-avatar-button:hover .fxaccount-avatar {
-  border-color: var(--in-content-border-hover);
-}
-
-.fxaccounts-avatar-button:hover:active .fxaccount-avatar {
-  border-color: var(--in-content-border-active);
-}
-
 .fxaccounts-avatar-button:hover {
   background-color: transparent !important;
 }