Remove unused Coveralls-script
Remove unused Coveralls-script

Disabled in https://github.com/cuberite/cuberite/commit/a22f0795f61108e06e1b7efef7681f314b3ea1a1
Reference removed in https://github.com/cuberite/cuberite/commit/ea43ae231818e7999eb6c218a65198b3438a440c
mc-server/MCServer,mc-server/MCServer,mc-server/MCServer,mc-server/MCServer,mc-server/MCServer,mc-server/MCServer