update config to match with latest mmtests

sysbench and lmbench needs few more variables but it was not exported
from the config file. export them.

reaim config doesn't success gcc check. Though it is weird, just remove
it from test suite because reaim is not mentioned from README, too.

sysbench code mirror / website is down now. Remove it from test suite
temporally until the site be active again.

micro and stress-blktrace  doesn't have bin/lib/MMTests/ExtractMicro.pm
file file and it causes compare-kernels.sh failure. Just remove it from
test suite now. The file could be added to mmtests in future as the file
for iozone did. Until then, remove it from test suite list.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>