fix: set kBodyUsed only once

[Uzlopak]

@metcoder95 wdyt? #3294

[codecov-commenter]

Codecov Report

:x: Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 92.94%. Comparing base (7321451) to head (68e70d6). :warning: Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/core/util.js	33.33%	2 Missing :warning:

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4592   +/-   ##
=======================================
  Coverage   92.94%   92.94%           
=======================================
  Files         106      106           
  Lines       32973    32970    -3     
=======================================
- Hits        30646    30644    -2     
+ Misses       2327     2326    -1     

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[Uzlopak]

@metcoder95

There is no code coverage. And i guess we can remove this code, because https://nodejs.org/api/stream.html#readablereadabledidread is existing since v14.

[ronag]

Streams will start the stream if on is called with 'data' that's why the EE prototype is used.

[Uzlopak]

Ok, but the thing is, that the code is not covered by unit tests.

[ronag]

Would be nice to have that fixed.