staging: rtl8188eu: os_dep: Remove useless cast on kzalloc

Casting rhe return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language, as mentioned in
Documentation/CodingStyle, Chap 14.

Removed the cast on kzalloc return value.

Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/rtl8188eu/os_dep/osdep_service.c b/drivers/staging/rtl8188eu/os_dep/osdep_service.c
index 8af4a8d..abcb3a8 100644
--- a/drivers/staging/rtl8188eu/os_dep/osdep_service.c
+++ b/drivers/staging/rtl8188eu/os_dep/osdep_service.c
@@ -51,7 +51,7 @@
 {
 	int j;
 
-	void **a = (void **)kzalloc(h*sizeof(void *) + h*w*size, GFP_KERNEL);
+	void **a = kzalloc(h*sizeof(void *) + h*w*size, GFP_KERNEL);
 	if (a == NULL) {
 		pr_info("%s: alloc memory fail!\n", __func__);
 		return NULL;