Revert "Fix authenticationMechanisms check in jstest helper"

This reverts commit b2f87f53245b8c15eff65700a929984ebeab75a8.
Fix authenticationMechanisms check in jstest helper by adding type check
SERVER-10026 return more than one result from a getmore when caller wants all results
SERVER-10026 multiplan runner should return all its cached results before going eof
SERVER-10992 SERVER-11130 Avoid inclusion of boost symbols for non system boost client driver build
SERVER-10026 don't crash when explaining a multiplanrunner that hasn't picked best plan
SERVER-10026 disable failpoint check in getmore error test
SERVER=11160 added compatibility syslog symbols under solaris