Remove obsolete B16 & B32 tags in struct definitions

They were defined as empty macros on all platforms except for the
long unsupported Cray systems which needed to use bitfields to define
types smaller than 64-bits.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
1 job for B-macros-be-gone in 1 minute and 17 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Test
passed job #42386

00:01:17