media: atomisp2: Remove null check before kfree

Kfree on NULL pointer is a no-op and therefore checking is redundant.
Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c

@@ -295,10 +295,8 @@ void sh_css_unload_firmware(void)
 	}
 
 	memset(&sh_css_sp_fw, 0, sizeof(sh_css_sp_fw));
-	if (sh_css_blob_info) {
-		kfree(sh_css_blob_info);
-		sh_css_blob_info = NULL;
-	}
+	kfree(sh_css_blob_info);
+	sh_css_blob_info = NULL;
 	sh_css_num_binaries = 0;
 }