Fix hatch envs

Author: dstansby

pyproject.toml

@@ -95,7 +95,6 @@ docs = [
     'pydata-sphinx-theme',
     'numpydoc',
     'numcodecs[msgpack]',
-    'msgpack',
 ]
 
 
@@ -128,7 +127,7 @@ dependencies = [
     "numpy~={matrix:numpy}",
     "universal_pathlib",
 ]
-features = ["test", "extra"]
+features = ["test"]
 
 [[tool.hatch.envs.test.matrix]]
 python = ["3.11", "3.12", "3.13"]
@@ -159,7 +158,7 @@ dependencies = [
     "numpy~={matrix:numpy}",
     "universal_pathlib",
 ]
-features = ["test", "extra", "gpu"]
+features = ["test", "gpu"]
 
 [[tool.hatch.envs.gputest.matrix]]
 python = ["3.11", "3.12", "3.13"]