I2C: S3C24X0: Remove the dead code

This revomes the code under #if 0 in the s3c24x0_i2c driver.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>