Revert "i2c-msm-v2: update adapter device node in i2c driver"

Updating device node adapter is specific for branches that use
kernel version 3.14 and beyond. This change is not applicable to
3.10 kernel branch.

This reverts commit 809e6beb.

Change-Id: Ie9ba51d188d6ecd74f54798bc58b2d9ba10bc842
Signed-off-by: Ankit Gupta <ankgupta@codeaurora.org>