remove animation for login page

apollo-portal/src/main/resources/static/login.html

@@ -22,32 +22,6 @@
             background: -webkit-linear-gradient(left, #22d686, #24d3d3, #22d686, #24d3d3);
             background: linear-gradient(to right, #22d686, #24d3d3, #22d686, #24d3d3);
             background-size: 600% 100%;
-            -webkit-animation: HeroBG 20s ease infinite;
-            animation: HeroBG 20s ease infinite;
-        }
-
-        @-webkit-keyframes HeroBG {
-            0% {
-                background-position: 0 0;
-            }
-            50% {
-                background-position: 100% 0;
-            }
-            100% {
-                background-position: 0 0;
-            }
-        }
-
-        @keyframes HeroBG {
-            0% {
-                background-position: 0 0;
-            }
-            50% {
-                background-position: 100% 0;
-            }
-            100% {
-                background-position: 0 0;
-            }
         }
 
         .panel {