[FIX] remove a css property that caused issue

with the view_manager_header layout

addons/web/static/src/css/base.css

@@ -1360,7 +1360,6 @@
   height: 100%;
 }
 .openerp .oe_view_manager_current > .oe_view_manager_header {
-  display: table-row;
   border-bottom: 1px solid #cacaca;
   background-color: #ededed;
   background-image: -webkit-gradient(linear, left top, left bottom, from(#fcfcfc), to(#dedede));

addons/web/static/src/css/base.sass

@@ -1134,7 +1134,6 @@ $sheet-padding: 16px
     .oe_view_manager_current
         height: 100%
         > .oe_view_manager_header
-            display: table-row
             border-bottom: 1px solid #cacaca
             @include vertical-gradient(#fcfcfc, #dedede)
             @include box-shadow((0 1px 0 rgba(255,255,255,0.4), 0 0 9px rgba(0,0,0,0.1)))