fix mypy issues by folding in changes from #2181

Author: j-wags

openff/toolkit/topology/molecule.py

@@ -5654,7 +5654,7 @@ def _networkx_graph_to_hill_formula(graph: "nx.Graph[int]") -> str:
     if not isinstance(graph, nx.Graph):
         raise ValueError("The graph must be a NetworkX graph.")
 
-    atom_nums: list[int] = [atomic_number for (_, atomic_number) in graph.nodes(data="atomic_number", default=1)]
+    atom_nums: list[int] = [atomic_number for (_, atomic_number) in graph.nodes(data="atomic_number", default=1)] # type: ignore[misc]
 
     return _atom_nums_to_hill_formula(atom_nums)  # type:ignore[arg-type]
 

pyproject.toml

@@ -44,7 +44,6 @@ lint.isort.known-third-party = [ "openff.interchange", "openff.utilities", "open
 
 [tool.mypy]
 python_version = 3.12
-plugins = "numpy.typing.mypy_plugin"
 warn_unused_configs = true
 # would be nice to flip back to true
 warn_unused_ignores = false