staging: fbtft: fb_uc1611.c: Drop void pointer cast

Void pointers need not be cast to other pointer types.
Semantic patch used:

@r@
expression x;
void* e;
type T;
identifier f;
@@

(
  *((T *)e)
|
  ((T *)x) [...]
|
  ((T *)x)->f
|
- (T *)
  e
)

Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fbtft/fb_uc1611.c

@@ -222,8 +222,8 @@ static int set_var(struct fbtft_par *par)
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
 	u8 *vmem8 = (u8 *)(par->info->screen_buffer);
-	u8 *buf8 = (u8 *)(par->txbuf.buf);
-	u16 *buf16 = (u16 *)(par->txbuf.buf);
+	u8 *buf8 = par->txbuf.buf;
+	u16 *buf16 = par->txbuf.buf;
 	int line_length = par->info->fix.line_length;
 	int y_start = (offset / line_length);
 	int y_end = (offset + len - 1) / line_length;