diff --git a/src/utilities/TypeInfo.ts b/src/utilities/TypeInfo.ts
index 2fd4765c30..75a4eab9ff 100644
--- a/src/utilities/TypeInfo.ts
+++ b/src/utilities/TypeInfo.ts
@@ -3,7 +3,6 @@ import type { Maybe } from '../jsutils/Maybe.js';
 import type {
   ASTNode,
   DocumentNode,
-  FieldNode,
   FragmentDefinitionNode,
   VariableDefinitionNode,
 } from '../language/ast.js';
@@ -64,7 +63,6 @@ export class TypeInfo {
 
   private _fragmentSignature: Maybe<FragmentSignature>;
   private _fragmentArgument: Maybe<VariableDefinitionNode>;
-  private _getFieldDef: GetFieldDefFn;
 
   constructor(
     schema: GraphQLSchema,
@@ -73,9 +71,6 @@ export class TypeInfo {
      *  beginning somewhere other than documents.
      */
     initialType?: Maybe<GraphQLType>,
-
-    /** @deprecated will be removed in 17.0.0 */
-    getFieldDefFn?: Maybe<GetFieldDefFn>,
     fragmentSignatures?: Maybe<
       (fragmentName: string) => Maybe<FragmentSignature>
     >,
@@ -92,7 +87,6 @@ export class TypeInfo {
     this._fragmentSignaturesByName = fragmentSignatures ?? (() => null);
     this._fragmentSignature = null;
     this._fragmentArgument = null;
-    this._getFieldDef = getFieldDefFn ?? getFieldDef;
     if (initialType) {
       if (isInputType(initialType)) {
         this._inputTypeStack.push(initialType);
@@ -185,7 +179,7 @@ export class TypeInfo {
         let fieldDef;
         let fieldType: unknown;
         if (parentType) {
-          fieldDef = this._getFieldDef(schema, parentType, node);
+          fieldDef = schema.getField(parentType, node.name.value);
           if (fieldDef) {
             fieldType = fieldDef.type;
           }
@@ -348,20 +342,6 @@ export class TypeInfo {
   }
 }
 
-type GetFieldDefFn = (
-  schema: GraphQLSchema,
-  parentType: GraphQLCompositeType,
-  fieldNode: FieldNode,
-) => Maybe<GraphQLField<unknown, unknown>>;
-
-function getFieldDef(
-  schema: GraphQLSchema,
-  parentType: GraphQLCompositeType,
-  fieldNode: FieldNode,
-) {
-  return schema.getField(parentType, fieldNode.name.value);
-}
-
 function getFragmentSignatures(
   document: DocumentNode,
 ): Map<string, FragmentSignature> {
diff --git a/src/validation/ValidationContext.ts b/src/validation/ValidationContext.ts
index 7f881fc369..7f7114c4ef 100644
--- a/src/validation/ValidationContext.ts
+++ b/src/validation/ValidationContext.ts
@@ -205,7 +205,6 @@ export class ValidationContext extends ASTValidationContext {
       const typeInfo = new TypeInfo(
         this._schema,
         undefined,
-        undefined,
         this._typeInfo.getFragmentSignatureByName(),
       );
       const fragmentDefinition =
diff --git a/src/validation/__tests__/validation-test.ts b/src/validation/__tests__/validation-test.ts
index 19cb3b178a..13de153c39 100644
--- a/src/validation/__tests__/validation-test.ts
+++ b/src/validation/__tests__/validation-test.ts
@@ -9,7 +9,6 @@ import type { DirectiveNode } from '../../language/ast.js';
 import { parse } from '../../language/parser.js';
 
 import { buildSchema } from '../../utilities/buildASTSchema.js';
-import { TypeInfo } from '../../utilities/TypeInfo.js';
 
 import { validate } from '../validate.js';
 import type { ValidationContext } from '../ValidationContext.js';
@@ -53,35 +52,6 @@ describe('Validate: Supports full validation', () => {
     ]);
   });
 
-  it('Deprecated: validates using a custom TypeInfo', () => {
-    // This TypeInfo will never return a valid field.
-    const typeInfo = new TypeInfo(testSchema, null, () => null);
-
-    const doc = parse(`
-      query {
-        human {
-          pets {
-            ... on Cat {
-              meowsVolume
-            }
-            ... on Dog {
-              barkVolume
-            }
-          }
-        }
-      }
-    `);
-
-    const errors = validate(testSchema, doc, undefined, undefined, typeInfo);
-    const errorMessages = errors.map((error) => error.message);
-
-    expect(errorMessages).to.deep.equal([
-      'Cannot query field "human" on type "QueryRoot". Did you mean "human"?',
-      'Cannot query field "meowsVolume" on type "Cat". Did you mean "meowsVolume"?',
-      'Cannot query field "barkVolume" on type "Dog". Did you mean "barkVolume"?',
-    ]);
-  });
-
   it('validates using a custom rule', () => {
     const schema = buildSchema(`
       directive @custom(arg: String) on FIELD