driver core: remove DRIVER_ATTR

DRIVER_ATTR is no longer in use, and driver authors should be using
DRIVER_ATTR_RW() or DRIVER_ATTR_RO() or DRIVER_ATTR_WO() instead in
order to always get the permissions correct.  So remove it so that no
one can use it anymore.
Acked-by: Alan Tull <atull@kernel.org>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/driver-model/driver.txt

@@ -196,12 +196,13 @@ struct driver_attribute {
 };
 
 Device drivers can export attributes via their sysfs directories. 
-Drivers can declare attributes using a DRIVER_ATTR macro that works
-identically to the DEVICE_ATTR macro. 
+Drivers can declare attributes using a DRIVER_ATTR_RW and DRIVER_ATTR_RO
+macro that works identically to the DEVICE_ATTR_RW and DEVICE_ATTR_RO
+macros.
 
 Example:
 
-DRIVER_ATTR(debug,0644,show_debug,store_debug);
+DRIVER_ATTR_RW(debug);
 
 This is equivalent to declaring:
 

Documentation/filesystems/sysfs.txt

@@ -366,7 +366,8 @@ struct driver_attribute {
 
 Declaring:
 
-DRIVER_ATTR(_name, _mode, _show, _store)
+DRIVER_ATTR_RO(_name)
+DRIVER_ATTR_RW(_name)
 
 Creation/Removal:
 

include/linux/device.h

@@ -307,8 +307,6 @@ struct driver_attribute {
 			 size_t count);
 };
 
-#define DRIVER_ATTR(_name, _mode, _show, _store) \
-	struct driver_attribute driver_attr_##_name = __ATTR(_name, _mode, _show, _store)
 #define DRIVER_ATTR_RW(_name) \
 	struct driver_attribute driver_attr_##_name = __ATTR_RW(_name)
 #define DRIVER_ATTR_RO(_name) \