Remove broken Ackerman.inf.java test

This test is actually wrong
* It can terminate (thous is not an infinte loop)
* It will crash with properly optimized code due to a huge call stack

This test assumes that the generated code is too slow to run into stack size problems before it runs into timeout problems
6 jobs for !50 with fix/backstab in 20 minutes and 50 seconds (queued for 4 seconds)
latest merge request
Name Stage Failure
failed
gruppen: [4, iComputerfreak/DerCompiler, 1] Run
[0042]    

[SUCCESS] compile-firm:TestOverflow.java correct
----------------------------------------
Ran 39 tests, of which 35 failed.
A full report for each test can be found at ../../../mjtest/reports/14-12-21_17-15-40_compile-firm.failed
Ran 410 tests, of which 35 failed.
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
gruppen: [3, larsk21/compiler-minijava, 1] Run
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1