feat: slim down the zip ddtrace package

[juanjux]

What does this PR do?

Remove some vestigial things, text files and unused libs.

# sizes are slightly lower because ARM64
ls -lsh *.zip                                                                                         
8.9M -rw-r--r-- 1 juanjo.alvarez staff 8.9M Mar 19 12:47 normal.zip
8.5M -rw-r--r-- 1 juanjo.alvarez staff 8.5M Mar 19 12:57 postPR.zip

How

I build the layer with:

ARCH=arm64 PYTHON_VERSION=3.11 DD_TRACE_COMMIT_BRANCH=main ./scripts/build_layers.sh

And with the help of the clanker started to look into things that should be 100% safe to delete.

Motivation

Not having new ddtrace releases blocked by the package size.

Files by extension

As suggested by @brettlangdon

[brettlangdon]

if you have an analysis of the non-py/binary files from a layer artifact, could be nice to have in the PR description, or even just a "count of files by extension", would be interesting to see what else might be there

[juanjux]

Updated the PR removing some filetypes that should not be anymore after hhttps://github.com/DataDog/dd-trace-py/pull/17020 is merged

[juanjux]

Closing, will be reopened from a branch inside this repo as instructed by @purple4reina