chore: removing usage of timed event from api

[obecny]

Which problem is this PR solving?

• Removing dependency on TimedEvent from api

Short description of the changes

• Fixes Consider hiding/moving Event/TimedEvent opentelemetry-js-api#37

[codecov]

Codecov Report

Merging #2183 (6a9a3a9) into main (5f7ec00) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #2183      +/-   ##
==========================================
+ Coverage   92.83%   92.85%   +0.01%     
==========================================
  Files         139      139              
  Lines        5024     5024              
  Branches     1035     1035              
==========================================
+ Hits         4664     4665       +1     
+ Misses        360      359       -1     

Impacted Files	Coverage Δ
.../opentelemetry-exporter-collector/src/transform.ts	88.69% <ø> (ø)
...ges/opentelemetry-exporter-zipkin/src/transform.ts	100.00% <100.00%> (ø)
packages/opentelemetry-tracing/src/Span.ts	98.07% <100.00%> (ø)
...emetry-core/src/platform/node/RandomIdGenerator.ts	93.75% <0.00%> (+6.25%)	⬆️