Revert mypy changes and remove 3.7 category marker

pyproject.toml

@@ -22,7 +22,6 @@ classifiers=[
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
@@ -123,7 +122,6 @@ skip_gitignore = true
 skip = ["./build", "./docs"]
 known_first_party = ["outcome"]
 
-
 [tool.mypy]
 python_version = "3.8"
 
@@ -138,16 +136,16 @@ warn_unreachable = true
 warn_return_any = true
 
 # Avoid subtle backsliding
-#disallow_any_decorated = true
-disallow_any_generics = true
-disallow_any_unimported = true
 disallow_incomplete_defs = true
 disallow_subclassing_any = true
+disallow_any_unimported = true
+disallow_any_generics = true
+disallow_any_explicit = false
+
+check_untyped_defs = true
 disallow_untyped_calls = true
-disallow_untyped_decorators = true
 disallow_untyped_defs = true
-check_untyped_defs = true
-disallow_any_explicit = false
+disallow_untyped_decorators = true
 
 # DO NOT use `ignore_errors`; it doesn't apply
 # downstream and users have to deal with them.