Remove _id from bulk:write 2e route

[Aschen]

What does this PR do ?

Remove the second route for bulk:write. The _id is now a query string parameter and not part of the url

How should this be manually tested?

• Step 1 :
• Step 2 :
• Step 3 :
  ...

Other changes

Boyscout

[codecov]

Codecov Report

Merging #1314 into 1-dev will decrease coverage by 87.01%.
The diff coverage is 25%.

@@            Coverage Diff             @@
##            1-dev   #1314       +/-   ##
==========================================
- Coverage   93.79%   6.78%   -87.02%     
==========================================
  Files          98      98               
  Lines        6967    6971        +4     
==========================================
- Hits         6535     473     -6062     
- Misses        432    6498     +6066

Impacted Files	Coverage Δ
lib/config/httpRoutes.js	100% <ø> (ø)	⬆️
lib/api/core/plugins/pluginContext.js	10.21% <0%> (-85.37%)	⬇️
lib/api/kuzzle.js	20% <33.33%> (-66.37%)	⬇️
lib/api/core/validation/types/integer.js	0% <0%> (-100%)	⬇️
lib/api/core/validation/types/object.js	0% <0%> (-100%)	⬇️
lib/api/core/validation/types/date.js	0% <0%> (-100%)	⬇️
lib/api/core/validation/types/string.js	0% <0%> (-100%)	⬇️
lib/api/core/validation/types/numeric.js	0% <0%> (-100%)	⬇️
lib/api/core/validation/types/enum.js	0% <0%> (-100%)	⬇️
lib/api/core/validation/types/anything.js	0% <0%> (-100%)	⬇️
... and 86 more

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[codecov]

Codecov Report

Merging #1314 into 1-dev will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           1-dev   #1314   +/-   ##
=====================================
  Coverage   93.8%   93.8%           
=====================================
  Files         98      98           
  Lines       6991    6991           
=====================================
  Hits        6558    6558           
  Misses       433     433

Impacted Files	Coverage Δ
lib/api/kuzzle.js	86.36% <ø> (ø)	⬆️
lib/config/httpRoutes.js	100% <ø> (ø)	⬆️

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[benoitvidis]

I don't understand why this route should be removed.
To me, it is quite consistent with the document:create|replace routes.

[scottinet]

@benoitvidis > this started from this comment in the corresponding documentation PR: kuzzleio/documentation#300 (comment)

The routes you mention are old, and created prior to our own HTTP router. Passing a document ID in the querystring is now free, and having multiple URLs because of an optional argument doesn't seem clean to me.

Thinking of that, I wonder if perhaps we should deprecate the duplicated routes for old API actions 🤔

[Aschen]

@scottinet Yes I think we should deprecate other duplicated routes