Remove SdbList

[pelijah]

Your checklist for this pull request

• I've read the guidelines for contributing to this repository
• I made sure to follow the project's coding style
• I've documented or updated the documentation of every function and struct this PR changes. If not so I've explained why.
• I've added tests that prove my fix is effective or that my feature works (if possible)
• I've updated the rizin book with the relevant information (if needed)

Detailed description

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Test plan

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Closing issues

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[XVilka]

Nice cleanup!
rz-bindgen linter problem though:

Run python3 rz-bindgen/src/lint.py \
Type comment at <rizin/librz/util/sdb/src/text.c:226:23> lacks pointer
Error: Process completed with exit code 1.

[pelijah]

Nice cleanup! rz-bindgen linter problem though:

Run python3 rz-bindgen/src/lint.py \
Type comment at <rizin/librz/util/sdb/src/text.c:226:23> lacks pointer
Error: Process completed with exit code 1.

I didn't touch that code