Lint fixes

Author: benjie

src/type/definition.js

@@ -20,11 +20,7 @@ import identityFunc from '../jsutils/identityFunc';
 import defineToJSON from '../jsutils/defineToJSON';
 import suggestionList from '../jsutils/suggestionList';
 import { type PromiseOrValue } from '../jsutils/PromiseOrValue';
-import {
-  type ObjMap,
-  type ReadOnlyObjMap,
-  type ReadOnlyObjMapLike,
-} from '../jsutils/ObjMap';
+import { type ObjMap, type ReadOnlyObjMap } from '../jsutils/ObjMap';
 
 import { Kind } from '../language/kinds';
 import { print } from '../language/printer';

src/type/directives.js

@@ -9,10 +9,7 @@ import devAssert from '../jsutils/devAssert';
 import instanceOf from '../jsutils/instanceOf';
 import defineToJSON from '../jsutils/defineToJSON';
 import isObjectLike from '../jsutils/isObjectLike';
-import {
-  type ReadOnlyObjMap,
-  type ReadOnlyObjMapLike,
-} from '../jsutils/ObjMap';
+import { type ReadOnlyObjMap } from '../jsutils/ObjMap';
 
 import { type DirectiveDefinitionNode } from '../language/ast';
 import {

src/type/schema.js

@@ -10,11 +10,7 @@ import toObjMap from '../jsutils/toObjMap';
 import devAssert from '../jsutils/devAssert';
 import instanceOf from '../jsutils/instanceOf';
 import isObjectLike from '../jsutils/isObjectLike';
-import {
-  type ObjMap,
-  type ReadOnlyObjMap,
-  type ReadOnlyObjMapLike,
-} from '../jsutils/ObjMap';
+import { type ObjMap, type ReadOnlyObjMap } from '../jsutils/ObjMap';
 
 import { type GraphQLError } from '../error/GraphQLError';
 import {