nvramcui: drop unused variable

nvramcui.c: In function ‘main’:
nvramcui.c:68:8: warning: unused variable ‘cur’ [-Wunused-variable]
  ITEM *cur;
        ^

Change-Id: I5c692fc2e6da460cd7c6f7978378c92587d829d2
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reviewed-on: http://review.coreboot.org/8525
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

payloads/nvramcui/nvramcui.c

@@ -65,7 +65,6 @@ void render_form(FORM *form)
 int main()
 {
 	int ch, done;
-	ITEM *cur;
 	
 	/* coreboot data structures */
 	lib_get_sysinfo();