i2c: Drop i2c_adapter.id

There is no user left of i2c_adapter.id, so we can get rid of it.
Finally! :)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 7ce623b..8953309 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -585,16 +585,6 @@
 
 ----------------------------
 
-What:	i2c_adapter.id
-When:	June 2011
-Why:	This field is deprecated. I2C device drivers shouldn't change their
-	behavior based on the underlying I2C adapter. Instead, the I2C
-	adapter driver should instantiate the I2C devices and provide the
-	needed platform-specific information.
-Who:	Jean Delvare <khali@linux-fr.org>
-
-----------------------------
-
 What:	cancel_rearming_delayed_work[queue]()
 When:	2.6.39
 
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index cd2f75b..f1e3ff5 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -353,7 +353,6 @@
  */
 struct i2c_adapter {
 	struct module *owner;
-	unsigned int id __deprecated;
 	unsigned int class;		  /* classes to allow probing for */
 	const struct i2c_algorithm *algo; /* the algorithm to access the bus */
 	void *algo_data;