Documentation: i2c: Remove obsolete example

Documentation/i2c/fault-codes illustrates EINVAL error code
as follows:

"One example would be a driver trying an SMBus Block Write
with block size outside the range of 1-32 bytes."

However, the actual implementation of i2c subsystem truncates
data length to be 32 bytes.
Hence this example cannot happen anymore, and since it's obsolete,
let's simply remove it from Documentation/i2c/fault-codes.

Signed-off-by: Helia Correia <[e-mail]>
Signed-off-by: Wolfram Sang <[e-mail]>

Documentation/i2c/fault-codes

···
 	detected before any I/O operation was started.  Use a more
 	specific fault code when you can.
 
-	One example would be a driver trying an SMBus Block Write
-	with block size outside the range of 1-32 bytes.
-
 EIO
 	This rather vague error means something went wrong when
 	performing an I/O operation.  Use a more specific fault