remove codecov status checks

[rochdev]

What does this PR do?

Remove Codecov status checks.

Motivation

These fail as soon as there is a tiny variation in code coverage, creating unnecessary noise. I wasn't able to find in the documentation how to make these behave properly. The report is still generated and we can address this when the new test suite lands since it will make it easier to cover the entire codebase.

[github-actions]

Overall package size

Self size: 2.61 MB
Deduped: 29.79 MB
No deduping: 30.42 MB

Dependency sizes

name	version	self size	total size
@datadog/pprof	1.0.2	8.74 MB	14.46 MB
@datadog/native-metrics	1.4.2	6.61 MB	7.04 MB
@datadog/native-appsec	1.2.1	5.1 MB	5.43 MB
opentracing	0.14.7	194.81 kB	194.81 kB
@datadog/sketches-js	2.0.0	105.44 kB	105.44 kB
lodash.sortby	4.7.0	75.76 kB	75.76 kB
semver	5.7.1	61.58 kB	61.58 kB
ignore	5.2.0	48.87 kB	48.87 kB
import-in-the-middle	1.3.0	30.3 kB	34.77 kB
istanbul-lib-coverage	3.2.0	29.34 kB	29.34 kB
retry	0.10.1	27.44 kB	27.44 kB
lodash.uniq	4.5.0	25.01 kB	25.01 kB
limiter	1.1.5	23.17 kB	23.17 kB
lodash.kebabcase	4.1.1	17.75 kB	17.75 kB
lodash.pick	4.4.0	16.33 kB	16.33 kB
crypto-randomuuid	1.0.0	11.18 kB	11.18 kB
diagnostics_channel	1.1.0	7.07 kB	7.07 kB
path-to-regexp	0.1.7	6.78 kB	6.78 kB
koalas	1.0.2	6.47 kB	6.47 kB
methods	1.1.2	5.29 kB	5.29 kB
module-details-from-path	1.0.3	4.47 kB	4.47 kB

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[codecov]

Codecov Report

Merging #2326 (5d2d954) into master (abb87ff) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2326      +/-   ##
==========================================
- Coverage   92.70%   92.70%   -0.01%     
==========================================
  Files         224      220       -4     
  Lines        8718     8580     -138     
==========================================
- Hits         8082     7954     -128     
+ Misses        636      626      -10     

Impacted Files	Coverage Δ
packages/datadog-plugin-ioredis/src/index.js
packages/datadog-instrumentations/src/ioredis.js
packages/datadog-plugin-redis/src/index.js
packages/datadog-instrumentations/src/redis.js

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[Qard]

You need to use the status threshold setting. https://docs.codecov.com/docs/commit-status

[rochdev]

You need to use the status threshold setting. https://docs.codecov.com/docs/commit-status

The doc is extremely unclear how this should be used, and in any case I'd put it so low that it would effectively be the same as setting the config to off.