Index: src/wp-admin/css/themes.css
===================================================================
--- src/wp-admin/css/themes.css	(revision 28036)
+++ src/wp-admin/css/themes.css	(working copy)
@@ -1086,8 +1086,7 @@
 .theme-browser .theme .theme-installed:before {
 	content: '\f147';
 }
-.theme-browser .theme.is-installed .theme-actions,
-.theme-browser.rendered .theme.is-installed .more-details {
+.theme-browser .theme.is-installed .theme-actions .button-primary {
 	display: none !important;
 }
 .theme-browser.rendered .theme.is-installed:hover .theme-screenshot img,
Index: src/wp-admin/js/theme.js
===================================================================
--- src/wp-admin/js/theme.js	(revision 28036)
+++ src/wp-admin/js/theme.js	(working copy)
@@ -390,7 +390,6 @@
 
 		if ( this.model.get( 'installed' ) ) {
 			this.$el.addClass( 'is-installed' );
-			this.$el.unbind();
 		}
 	},