[mediawiki.action.history.diff.css] remove redundant css rule

* Background color reset for tables is no longer needed per r80495
* See r80495 commitmsg for rationale for removal of the `table { backgroundL: white }` rule
* Also touched in r105280

diff --git a/resources/mediawiki.action/mediawiki.action.history.diff.css b/resources/mediawiki.action/mediawiki.action.history.diff.css
index 622e98e..46f45bc 100644 (file)
--- a/resources/mediawiki.action/mediawiki.action.history.diff.css
+++ b/resources/mediawiki.action/mediawiki.action.history.diff.css
@@ -1,11 +1,6 @@
-/*
-** Diff rendering
-*/
-table.diff,
-td.diff-otitle,
-td.diff-ntitle {
-       background-color: transparent;
-}
+/**
+ * Diff rendering
+ */
 
 td.diff-otitle,
 td.diff-ntitle {