staging: wilc1000: remove wilc_debugfs.c file as its not used

Deleted wilc_debugfs.c file as it's not used.

Earlier discussion link:
[1]. https://www.spinics.net/lists/linux-wireless/msg176076.html

Suggested-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/Makefile

@@ -4,12 +4,11 @@ obj-$(CONFIG_WILC1000) += wilc1000.o
 ccflags-y += -DFIRMWARE_1002=\"atmel/wilc1002_firmware.bin\" \
 		-DFIRMWARE_1003=\"atmel/wilc1003_firmware.bin\"
 
-ccflags-y += -I$(src)/ -DWILC_ASIC_A0 -DWILC_DEBUGFS
+ccflags-y += -I$(src)/ -DWILC_ASIC_A0
 
 wilc1000-objs := wilc_wfi_cfgoperations.o linux_wlan.o linux_mon.o \
 			coreconfigurator.o host_interface.o \
-			wilc_wlan_cfg.o wilc_debugfs.o \
-			wilc_wlan.o
+			wilc_wlan_cfg.o wilc_wlan.o
 
 obj-$(CONFIG_WILC1000_SDIO) += wilc1000-sdio.o
 wilc1000-sdio-objs += wilc_sdio.o

drivers/staging/wilc1000/wilc_debugfs.c

@@ -1,115 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries.
- * All rights reserved.
- */
-
-#if defined(WILC_DEBUGFS)
-#include <linux/module.h>
-#include <linux/debugfs.h>
-
-#include "wilc_wlan_if.h"
-
-static struct dentry *wilc_dir;
-
-#define DEBUG           BIT(0)
-#define INFO            BIT(1)
-#define WRN             BIT(2)
-#define ERR             BIT(3)
-
-#define DBG_LEVEL_ALL	(DEBUG | INFO | WRN | ERR)
-static atomic_t WILC_DEBUG_LEVEL = ATOMIC_INIT(ERR);
-EXPORT_SYMBOL_GPL(WILC_DEBUG_LEVEL);
-
-static ssize_t wilc_debug_level_read(struct file *file, char __user *userbuf,
-				     size_t count, loff_t *ppos)
-{
-	char buf[128];
-	int res = 0;
-
-	/* only allow read from start */
-	if (*ppos > 0)
-		return 0;
-
-	res = scnprintf(buf, sizeof(buf), "Debug Level: %x\n",
-			atomic_read(&WILC_DEBUG_LEVEL));
-
-	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-
-static ssize_t wilc_debug_level_write(struct file *filp,
-				      const char __user *buf, size_t count,
-				      loff_t *ppos)
-{
-	int flag = 0;
-	int ret;
-
-	ret = kstrtouint_from_user(buf, count, 16, &flag);
-	if (ret)
-		return ret;
-
-	if (flag > DBG_LEVEL_ALL) {
-		pr_info("%s, value (0x%08x) is out of range, stay previous flag (0x%08x)\n",
-			__func__, flag, atomic_read(&WILC_DEBUG_LEVEL));
-		return -EINVAL;
-	}
-
-	atomic_set(&WILC_DEBUG_LEVEL, (int)flag);
-
-	if (flag == 0)
-		pr_info("Debug-level disabled\n");
-	else
-		pr_info("Debug-level enabled\n");
-
-	return count;
-}
-
-#define FOPS(_open, _read, _write, _poll) { \
-		.owner	= THIS_MODULE, \
-		.open	= (_open), \
-		.read	= (_read), \
-		.write	= (_write), \
-		.poll		= (_poll), \
-}
-
-struct wilc_debugfs_info_t {
-	const char *name;
-	int perm;
-	unsigned int data;
-	const struct file_operations fops;
-};
-
-static struct wilc_debugfs_info_t debugfs_info[] = {
-	{
-		"wilc_debug_level",
-		0666,
-		(DEBUG | ERR),
-		FOPS(NULL, wilc_debug_level_read, wilc_debug_level_write, NULL),
-	},
-};
-
-static int __init wilc_debugfs_init(void)
-{
-	int i;
-	struct wilc_debugfs_info_t *info;
-
-	wilc_dir = debugfs_create_dir("wilc_wifi", NULL);
-	for (i = 0; i < ARRAY_SIZE(debugfs_info); i++) {
-		info = &debugfs_info[i];
-		debugfs_create_file(info->name,
-				    info->perm,
-				    wilc_dir,
-				    &info->data,
-				    &info->fops);
-	}
-	return 0;
-}
-module_init(wilc_debugfs_init);
-
-static void __exit wilc_debugfs_remove(void)
-{
-	debugfs_remove_recursive(wilc_dir);
-}
-module_exit(wilc_debugfs_remove);
-
-#endif