Remove deprecated assert_valid_name & is_valid_name_error

Replicates graphql/graphql-js@6dda669

Author: Cito

docs/modules/utilities.rst

@@ -94,11 +94,6 @@ Comparators for types:
 .. autofunction:: is_type_sub_type_of
 .. autofunction:: do_types_overlap
 
-Assert that a string is a valid GraphQL name:
-
-.. autofunction:: assert_valid_name
-.. autofunction:: is_valid_name_error
-
 Compare two GraphQLSchemas and detect breaking changes:
 
 .. autofunction:: find_breaking_changes

src/graphql/__init__.py

@@ -212,10 +212,6 @@
     is_equal_type,
     is_type_sub_type_of,
     do_types_overlap,
-    # Assert a string is a valid GraphQL name.
-    assert_valid_name,
-    # Determine if a string is a valid GraphQL name.
-    is_valid_name_error,
     # Compare two GraphQLSchemas and detect breaking changes.
     BreakingChange,
     BreakingChangeType,
@@ -764,8 +760,6 @@
     "is_equal_type",
     "is_type_sub_type_of",
     "do_types_overlap",
-    "assert_valid_name",
-    "is_valid_name_error",
     "find_breaking_changes",
     "find_dangerous_changes",
     "BreakingChange",

src/graphql/utilities/__init__.py

@@ -68,9 +68,6 @@
 # Comparators for types
 from .type_comparators import is_equal_type, is_type_sub_type_of, do_types_overlap
 
-# Assert that a string is a valid GraphQL name.
-from .assert_valid_name import assert_valid_name, is_valid_name_error
-
 # Compare two GraphQLSchemas and detect breaking changes.
 from .find_breaking_changes import (
     BreakingChange,
@@ -89,7 +86,6 @@
     "IntrospectionQuery",
     "TypeInfo",
     "TypeInfoVisitor",
-    "assert_valid_name",
     "ast_from_value",
     "ast_to_dict",
     "build_ast_schema",
@@ -105,7 +101,6 @@
     "get_operation_ast",
     "is_equal_type",
     "is_type_sub_type_of",
-    "is_valid_name_error",
     "introspection_from_schema",
     "lexicographic_sort_schema",
     "print_introspection_schema",