Removing spinning animation from close buttons

Packages/ohif-core/client/components/bootstrap/notification/notification.styl

@@ -47,17 +47,12 @@
         position: absolute
         text-align: center
         top: 50%
-        transform(translateY(-50%) rotate(0deg))
-        transform-origin(50% 50%)
-        transition(transform 0.3s ease)
+        transform(translateY(-50%))
         width: 100%
 
       &:hover
         background-color: rgba(0, 0, 0, 0.1)
 
-        i
-          transform(translateY(-50%) rotate(180deg))
-
   &.in
     max-height: auto
     opacity: 1