i2c-dev: Delete empty detach_client callback
authorJean Delvare <khali@linux-fr.org>
Mon, 14 Jul 2008 20:38:34 +0000 (22:38 +0200)
committerJean Delvare <khali@mahadeva.delvare>
Mon, 14 Jul 2008 20:38:34 +0000 (22:38 +0200)
Implementing detach_client is optional, so there is no point in
an empty implementation.

Likewise, i2c driver IDs are optional, and we don't need one.

Signed-off-by: Jean Delvare <khali@linux-fr.org>

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