Remove old receiver factories and receiver base factory

[bogdandrutu]

No description provided.

[codecov]

Codecov Report

Merging #1583 into master will increase coverage by 0.02%.
The diff coverage is 85.71%.

@@            Coverage Diff             @@
##           master    #1583      +/-   ##
==========================================
+ Coverage   91.86%   91.89%   +0.02%     
==========================================
  Files         255      255              
  Lines       17561    17549      -12     
==========================================
- Hits        16133    16127       -6     
+ Misses       1021     1017       -4     
+ Partials      407      405       -2     

Impacted Files	Coverage Δ
component/componenttest/example_factories.go	89.93% <ø> (ø)
service/builder/receivers_builder.go	76.72% <80.00%> (+0.70%)	⬆️
component/factories.go	92.85% <100.00%> (ø)
config/config.go	99.69% <100.00%> (ø)
translator/internaldata/resource_to_oc.go	85.41% <0.00%> (+2.08%)	⬆️

---

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 30c3c34...a8f3d71. Read the comment docs.