Remove ANSIBLE_METADATA

[orjan]

SUMMARY

The meta data field is deprecated and is not used anymore.
See ansible-collections/overview#57 for more details.

Fixes #91

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

all

[codecov]

Codecov Report

Merging #95 into master will decrease coverage by 0.10%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #95      +/-   ##
==========================================
- Coverage   43.33%   43.22%   -0.11%     
==========================================
  Files           3        3              
  Lines         540      539       -1     
  Branches      109      109              
==========================================
- Hits          234      233       -1     
  Misses        263      263              
  Partials       43       43              

Impacted Files	Coverage Δ
...ctions/community/kubernetes/plugins/modules/k8s.py	90.00% <0.00%> (-0.91%)	⬇️

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[geerlingguy]

There's one error in the sanity test that is not related to this PR (it's failing in the cron CI run too):

ERROR: Found 1 pylint issue(s) which need to be resolved:
ERROR: plugins/modules/k8s_info.py:147:12: collection-invalid-deprecated-version: Invalid deprecated version ('2.13') found in call to Display.deprecated or AnsibleModule.deprecate

Since that's not a blocker, I approve this PR as it resolves #91.