omapfb/dss: Delete an error message for a failed memory allocation in three functions

[SF Markus Elfring]

>> I got an other impression. The probability for disagreements is increasing
>> in relation to the number of contributors to which I show change possibilities.
> 
> No.  You should learn from the previous submissions what concerns people
> have and address them up front.

The concerns can vary as contributors and changes are different.

How would you like to “address” the data structure for a default allocation
failure report finally?

Regards,
Markus