[BUGFIX] Typos in t3skin css files

Remove the lines as they have not been valid, nobody will miss them.

Resolves: #57716
Releases: 6.3, 6.2
Change-Id: I70625980ec49f6a8f76d695c4e2eb5d3c1548b36
Reviewed-on: https://review.typo3.org/30329
Reviewed-by: Markus Klein
Tested-by: Markus Klein

typo3/sysext/t3skin/Resources/Public/Css/visual/element_table.css

@@ -28,7 +28,6 @@ table.t3-table-info {
  * Common style for tables
  */
 table.t3-table {
-	backgorund-color: #fff;
 	border: none;
 	border: 1px solid #d7d7d7;
 }

typo3/sysext/t3skin/Resources/Public/Css/visual/module_web_list.css

@@ -4,7 +4,6 @@ Web > List
 
 /** @deprecated styles */
 table.typo3-dblist {
-	backgorund-color: #fff;
 	border: none;
 	border: 1px solid #d7d7d7;
 }