staging: wfx: Remove unnecessary return variable

Remove redundant variable in file fwio.c used for returning value.

Issue was found using Coccinelle:

@@
local idexpression ret;
expression e;
@@

-ret =
+return
     e;
-return ret;
Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Link: https://lore.kernel.org/r/20200726130720.12993-1-sylphrenadin@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wfx/fwio.c

@@ -397,10 +397,9 @@ int wfx_init_device(struct wfx_dev *wdev)
 	ret = load_firmware_secure(wdev);
 	if (ret < 0)
 		return ret;
-	ret = config_reg_write_bits(wdev,
+	return config_reg_write_bits(wdev,
 				     CFG_DIRECT_ACCESS_MODE |
 				     CFG_IRQ_ENABLE_DATA |
 				     CFG_IRQ_ENABLE_WRDY,
 				     CFG_IRQ_ENABLE_DATA);
-	return ret;
 }