Core: Popover remove unused styles

Author: nolimits4web

src/core/components/popover/popover-md.less

@@ -3,8 +3,8 @@
   @import (multiple) '../../less/vars-md.less';
   .popover {
     background: #fff;
-    border-radius: 3px;
-    .md-depth(2);
+    border-radius: 4px;
+    .elevation(8);
     transform: scale(0.85, 0.6);
     transition-property: opacity, transform, border-radius;
     &.modal-in {
@@ -48,50 +48,6 @@
   .popover-on-bottom {
     transform-origin: center top;
   }
-  .popover-from-fab {
-    transform-origin: center center;
-    transform: scale(0.7);
-    border-radius: 50%;
-    box-shadow: none;
-    .md-depth(3);
-    &.modal-in {
-      border-radius: 0;
-      transform: scale(1);
-      transition-delay: 200ms;
-      transition-duration: 200ms;
-    }
-    &.modal-out {
-      border-radius: 50%;
-      transform: scale(0.7);
-      transition-delay: 0ms;
-      transition-duration: 100ms;
-    }
-    .list {
-      margin: 0;
-      &:first-child {
-        ul {
-          border-radius: 0;
-        }
-        li:first-child a {
-          border-radius: 0;
-        }
-      }
-      &:last-child {
-        ul {
-          border-radius: 0;
-        }
-        li:last-child a {
-          border-radius: 0;
-        }
-      }
-      &:first-child:last-child {
-        li:first-child:last-child a, ul {
-          border-radius: 0;
-        }
-      }
-    }
-
-  }
   .popover-from-actions {
     .list {
       margin: 0;