mediawiki.action.history.diff: Remove white background from table.diff

Skins where a white background works generally already have a white background
behind this. Skins where it doesn't work generally just wind up overriding this
back to the default (transparent).

Simply removing the background should simplify things.

Change-Id: I1a906f533f7ae2697ee18c998f316a0957ac8bda

diff --git a/resources/src/mediawiki.action/mediawiki.action.history.diff.css b/resources/src/mediawiki.action/mediawiki.action.history.diff.css
old mode 100644 (file)
new mode 100755 (executable)
index afe9246..092a597
--- a/resources/src/mediawiki.action/mediawiki.action.history.diff.css
+++ b/resources/src/mediawiki.action/mediawiki.action.history.diff.css
@@ -2,7 +2,6 @@
 ** Diff rendering
 */
 table.diff {
-       background-color: white;
        border: none;
        border-spacing: 4px;
        margin: 0;