staging: slicoss: remove gratuitous debug infrastructure

As per the TODO file, this patch removes the gratuitous debug
infrastructure. As an extra incentive for removing this code,
the debugfs files are not cleaned up properly. For example, if
register_netdev() fails in slic_entry_probe() then all debugfs
files get left behind, even after the driver module is unloaded.
Touching these files quickly leads to an oops.
Signed-off-by: David Matlack <dmatlack@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/slicoss/TODO

@@ -18,7 +18,6 @@ TODO:
 	  use ethtool instead
 	- reorder code to elminate use of forward declarations
 	- don't keep private linked list of drivers.
-	- remove all the gratiutous debug infrastructure
 	- use PCI_DEVICE()
 	- do ethtool correctly using ethtool_ops
 	- NAPI?

drivers/staging/slicoss/slic.h

@@ -310,8 +310,6 @@ struct sliccard {
 	u32           loadtimerset;
 	uint              config_set;
 	struct slic_config  config;
-	struct dentry      *debugfs_dir;
-	struct dentry      *debugfs_cardinfo;
 	struct adapter  *master;
 	struct adapter  *adapter[SLIC_MAX_PORTS];
 	struct sliccard *next;
@@ -450,7 +448,6 @@ struct adapter {
 	u32             pingtimerset;
 	struct timer_list   loadtimer;
 	u32             loadtimerset;
-	struct dentry      *debugfs_entry;
 	struct slic_spinlock     upr_lock;
 	struct slic_spinlock     bit64reglock;
 	struct slic_rspqueue     rspqueue;