[PATCH] I2C: kill duplicate includes in i2c bus drivers

Following a suggestion of Arthur Othieno, here is a trivial patch that
kills duplicate inclusions of config.h in four i2c bus drivers.

At first I was thinking of also removing inclusions of config.h wherever
it doesn't seem to be necessary but Eugene doesn't seem to think it's a
good idea. So I may give it a try later (in 2.7), but for now this
simple patch will be enough.

drivers/i2c/busses/i2c-keywest.c

@@ -48,7 +48,6 @@
 
 #include <linux/config.h>
 #include <linux/module.h>
-#include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/ioport.h>
 #include <linux/pci.h>

drivers/i2c/busses/i2c-piix4.c

@@ -31,7 +31,6 @@
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
-#include <linux/config.h>
 #include <linux/pci.h>
 #include <linux/kernel.h>
 #include <linux/stddef.h>

drivers/i2c/busses/scx200_acb.c

@@ -24,7 +24,6 @@
 
 */
 
-#include <linux/config.h>
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/errno.h>

drivers/i2c/busses/scx200_i2c.c

@@ -21,7 +21,6 @@
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.		     
 */
 
-#include <linux/config.h>
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/errno.h>