Add remove role

includes/core/class-roles-capabilities.php

@@ -140,6 +140,23 @@ if ( ! class_exists( 'Roles_Capabilities' ) ) {
             return apply_filters( 'um_set_user_role', $new_role, $user_id, $user );
         }
 
+        /**
+        * Remove user role
+        * 
+        * @param $user_id
+        * @param $role
+        */
+        function remove_role( $user_id, $role ) {
+            // Validate user id
+            $user = get_userdata( $user_id );
+
+            // User exists
+            if ( ! empty( $user ) ) {
+                // Remove role
+                $user->remove_role( $role );
+            }
+        }
+
 
 	    /**
 	     * Remove user role