Mainly, eliminate the comments about share maps.  (We don't have share maps any more.)  Also, eliminate an incorrect comment that says that we don't coalesce vm_map_entry's.  (We do.)
Mainly, eliminate the comments about share maps.  (We don't have share maps
any more.)  Also, eliminate an incorrect comment that says that we don't
coalesce vm_map_entry's.  (We do.)

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase