staging: sm7xxfb: delete unnecessary color map allocation

This patchs erases fb_alloc_cmap call in smtc_free_fb_info. In the
future, when needed, the required function to call here should be
fb_dealloc_cmap.

Tested with SM712.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/sm7xxfb/sm7xxfb.c b/drivers/staging/sm7xxfb/sm7xxfb.c
index 78da779..e5d016b 100644
--- a/drivers/staging/sm7xxfb/sm7xxfb.c
+++ b/drivers/staging/sm7xxfb/sm7xxfb.c
@@ -697,6 +697,14 @@
 }
 
 /*
+ * free struct smtcfb_info
+ */
+static void smtc_free_fb_info(struct smtcfb_info *sfb)
+{
+	kfree(sfb);
+}
+
+/*
  * Unmap in the memory mapped IO registers
  */
 
@@ -755,14 +763,6 @@
 	outb_p(0x11, 0x3c5);
 }
 
-static void smtc_free_fb_info(struct smtcfb_info *sfb)
-{
-	if (sfb) {
-		fb_alloc_cmap(&sfb->fb.cmap, 0, 0);
-		kfree(sfb);
-	}
-}
-
 /*
  *	sm712vga_setup - process command line options, get vga parameter
  *	@options: string of options