Revert 93706478

Was not needed anymore.  For details see:

Bug 621902 - artifacts shown at the button of maximized terminal after
minimizing another window over it

src/vte.c

@@ -12697,7 +12697,6 @@ vte_terminal_background_update(VteTerminal *terminal)
 {
 	double saturation;
 	const PangoColor *entry;
-	GdkColor color;
 
 	/* If we're not realized yet, don't worry about it, because we get
 	 * called when we realize. */
@@ -12717,13 +12716,6 @@ vte_terminal_background_update(VteTerminal *terminal)
 			 entry->red, entry->green, entry->blue,
 			 terminal->pvt->bg_opacity);
 
-	/* Set the terminal widget background color since otherwise we
-	 * won't draw it for VTE_BG_SOURCE_NONE. */
-	color.red = entry->red;
-	color.green = entry->green;
-	color.blue = entry->blue;
-	gtk_widget_modify_bg (&terminal->widget, GTK_STATE_NORMAL, &color);
-
 	_vte_draw_set_background_solid (terminal->pvt->draw, 
 					entry->red / 65535.,
 					entry->green / 65535.,