chore: remove leftover development docs

Author: basnijholt

IMPLEMENTATION.md

@@ -61,7 +61,6 @@ ignore = ["D", "COM812", "ISC001"]
 
 [tool.ruff.lint.per-file-ignores]
 "tests/*" = ["S101", "PLR2004", "ANN"]
-"benchmarks/*" = ["T201", "ANN", "S101"]
 "examples/*" = ["INP001", "T201", "S101", "N813", "RUF001", "RUF002", "SIM105", "PERF203"]
 
 [tool.mypy]