fix: Fix schema tests around remove type.

Author: vantreeseba

src/introspection/getSchemaFromData.js

@@ -1,5 +1,4 @@
 import {
-    GraphQLBoolean,
     GraphQLID,
     GraphQLInt,
     GraphQLList,

src/introspection/getSchemaFromData.spec.js

@@ -1,5 +1,4 @@
 import {
-    GraphQLBoolean,
     GraphQLID,
     GraphQLInt,
     GraphQLList,
@@ -228,7 +227,7 @@ test('creates three mutation fields per data type', () => {
             description: null,
         },
     ]);
-    expect(mutations['removePost'].type.name).toEqual(GraphQLBoolean.name);
+    expect(mutations['removePost'].type.name).toEqual(PostType.name);
     expect(mutations['removePost'].args).toEqual([
         {
             name: 'id',
@@ -267,7 +266,7 @@ test('creates three mutation fields per data type', () => {
             description: null,
         },
     ]);
-    expect(mutations['removeUser'].type.name).toEqual(GraphQLBoolean.name);
+    expect(mutations['removeUser'].type.name).toEqual(UserType.name);
     expect(mutations['removeUser'].args).toEqual([
         {
             defaultValue: undefined,