Delete fingerprint for 1253896

The fingerprint for bug 1253896 is very loose and hits too many things.
Although this was useful for a while, it now may be masking multiple
bugs so remove the query and force us to reclassify the failures as
separate bugs.

Change-Id: I60806875fd78fc6ac9c117177840eba33cda36b8
Merge "Delete fingerprint for 1253896"