chore(circleci): remove duplicate compile step

[mayurkale22]

Which problem is this PR solving?

• Updates coverage runs take 2 min out of every circleci build #481

• We can save ~25secs during each build

• Compile step is already part of prepare script, which runs on yarn install.

[codecov-io]

Codecov Report

Merging #510 into master will increase coverage by 43.33%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master     #510       +/-   ##
===========================================
+ Coverage    49.2%   92.54%   +43.33%     
===========================================
  Files          47      146       +99     
  Lines        1392     7221     +5829     
  Branches      143      623      +480     
===========================================
+ Hits          685     6683     +5998     
+ Misses        707      538      -169

Impacted Files	Coverage Δ
.../opentelemetry-core/src/trace/spancontext-utils.ts	100% <0%> (ø)	⬆️
packages/opentelemetry-web/src/WebTracer.ts	100% <0%> (ø)	⬆️
...opentelemetry-core/src/trace/globaltracer-utils.ts	100% <0%> (ø)	⬆️
.../opentelemetry-core/test/metrics/NoopMeter.test.ts	97.22% <0%> (ø)
...emetry-metrics/src/export/ConsoleMetricExporter.ts	93.75% <0%> (ø)
...entelemetry-plugin-dns/src/enums/AttributeNames.ts	100% <0%> (ø)
...ry-plugin-dns/test/functionals/dns-disable.test.ts	100% <0%> (ø)
...entelemetry-exporter-jaeger/test/transform.test.ts	100% <0%> (ø)
...opentelemetry-base/test/resources/resource.test.ts	100% <0%> (ø)
packages/opentelemetry-tracing/src/config.ts	100% <0%> (ø)
... and 111 more

[markwolff]

Could this also be removed in node_unit_tests?

[mayurkale22]

I tried, but build is failing after that https://app.circleci.com/jobs/github/open-telemetry/opentelemetry-js/7777

[dyladan]

I believe the issue is a permissions one. https://docs.npmjs.com/misc/scripts#user

Try enabling the unsafe-perm flag and removing yarn compile from the node_unit_tests