Revert "Update jacoco artifact id."

This reverts commit e8c89023.
6 jobs for master in 2 minutes and 57 seconds (queued for 3 seconds)
Name Stage Failure
java8 Build
130652 [ERROR] 
130652 [ERROR] Re-run Maven using the -X switch to enable full debug logging.
130652 [ERROR]
130652 [ERROR] For more information about the errors and possible solutions, please read the following articles:
130653 [ERROR] [Help 1]
130653 [ERROR]
130653 [ERROR] After correcting the problems, you can resume the build with the command
130653 [ERROR] mvn <goals> -rf :org.ow2.sat4j.core
ERROR: Job failed: exit code 1