Remove error array initialization from inttag

[dougbrn]

The error array that inttag produces for it's output raw ACCUM image is not being utilized by calstis currently, as calstis initializes it's own error array as part of one of the first calibration steps. The calstis error array is likely clobbering the inttag array as calstis expects an empty error array based on archive processed raw ACCUM images (which have no error array). In order to line up inttag produced raw files with archive raw files, we should remove error array initialization from inttag and just let calstis handle this.

[sean-lockwood]

We probably also want to leave the DQ array unpopulated too.