Revert "i2c: core: Add function for finding the bus speed from ACPI"

This reverts commit 55d38d060e999ca1a3ea6eb132105a0301e4cd04. There were
too heavy merge conflicts and the driver code making use of this was not
ready yet anyhow. So, we wait one cycle.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2 files changed