Revert "HACK: OMAP: DSS2: clk hack for OMAP2/3"

This reverts commit 9ede365aa6f74428a1f69c21ca1cf21213167576.

The hack is no longer needed, as the HWMOD data has been fixed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 12da2fb..707e5af 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4441,10 +4441,7 @@
 
 	dsi->dss_clk = clk;
 
-	if (cpu_is_omap34xx() || cpu_is_omap3630())
-		clk = clk_get(&dsidev->dev, "dss2_alwon_fck");
-	else
-		clk = clk_get(&dsidev->dev, "sys_clk");
+	clk = clk_get(&dsidev->dev, "sys_clk");
 	if (IS_ERR(clk)) {
 		DSSERR("can't get sys_clk\n");
 		clk_put(dsi->dss_clk);