cleanup entities task

[vetinari]

see also zalando-zmon/zmon-scheduler#89

fixes #366

[codecov]

Codecov Report

Merging #388 into master will decrease coverage by 0.11%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master     #388      +/-   ##
==========================================
- Coverage   75.37%   75.25%   -0.12%     
==========================================
  Files          80       80              
  Lines        5917     5929      +12     
==========================================
+ Hits         4460     4462       +2     
- Misses       1457     1467      +10

Impacted Files	Coverage Δ
zmon_worker_monitor/zmon_worker/tasks/main.py	74.74% <0%> (-0.73%)	⬇️

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[codecov]

Codecov Report

Merging #388 into master will decrease coverage by 0.11%.
The diff coverage is 7.69%.

@@            Coverage Diff             @@
##           master     #388      +/-   ##
==========================================
- Coverage   75.37%   75.25%   -0.12%     
==========================================
  Files          80       80              
  Lines        5917     5929      +12     
==========================================
+ Hits         4460     4462       +2     
- Misses       1457     1467      +10

Impacted Files	Coverage Δ
zmon_worker_monitor/zmon_worker/tasks/main.py	74.74% <7.69%> (-0.73%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d3371f4...cbda056. Read the comment docs.

[mohabusama]

👍