remove old hack that breaks table abs. positioning, bug 145572 r/sr=dbaron

layout/html/document/src/ua.css

@@ -55,8 +55,6 @@
   display: table !important;
   margin: 0;
   padding: 0;
-  width: 0;
-  height: 0;
   float: inherit;
   clear: inherit;
   position: inherit;

layout/style/ua.css

@@ -55,8 +55,6 @@
   display: table !important;
   margin: 0;
   padding: 0;
-  width: 0;
-  height: 0;
   float: inherit;
   clear: inherit;
   position: inherit;