Remove extras

pyproject.toml

@@ -57,13 +57,7 @@ pre-commit = "^3.7.0"
 pydocstyle = "^6.3.0"
 
 [tool.poetry.extras]
-recommended = ["cvxpy", "scipy", "gurobipy", "matplotlib"]
-os = ["cvxpy", "pyscipopt", "scipy"]
-gurobi = ["cvxpy", "gurobipy"]
-cvxpy = ["cvxpy"]
-picos = ["PICOS"]
-networkx = ["networkx"]
-matplotlib = ["matplotlib"]
+highs = ["cvxpy", "scipy"]
 
 [tool.ruff]
 fix = true