Remove unnecessary pyrightconfig excludes (#6271)

pyrightconfig.json

@@ -5,11 +5,7 @@
         "stubs"
     ],
     "exclude": [
-        // Python 2 only modules.
-        "**/@python2",
-        "stubs/enum34",
-        "stubs/futures",
-        "stubs/ipaddress"
+        "**/@python2"
     ],
     "typeCheckingMode": "basic",
     "strictListInference": true,

pyrightconfig.stricter.json

@@ -6,19 +6,13 @@
         "stubs"
     ],
     "exclude": [
-        // Python 2 only modules.
         "**/@python2",
-        "stubs/enum34",
-        "stubs/futures",
-        "stubs/ipaddress",
-        // Modules that are incomplete in some way.
         "stdlib/distutils/command",
         "stdlib/lib2to3/refactor.pyi",
         "stdlib/sqlite3/dbapi2.pyi",
         "stdlib/tkinter",
         "stdlib/xml/dom",
         "stdlib/xml/sax",
-        "stubs/appdirs",
         "stubs/aws-xray-sdk",
         "stubs/babel",
         "stubs/backports.ssl_match_hostname",
@@ -62,10 +56,8 @@
         "stubs/simplejson",
         "stubs/slumber",
         "stubs/stripe",
-        "stubs/toposort",
         "stubs/ttkthemes",
         "stubs/vobject",
-        "stubs/waitress",
         "stubs/Werkzeug"
     ],
     "typeCheckingMode": "basic",