Update describe_spec.ts

Author: schmidt-sebastian

packages/firestore/test/unit/specs/describe_spec.ts

@@ -26,7 +26,7 @@ import { SpecBuilder } from './spec_builder';
 import { SpecStep } from './spec_test_runner';
 
 import * as stringify from 'json-stable-stringify';
-import { Target, targetEquals, TargetImpl } from '../../../src/core/target';
+import { targetEquals, TargetImpl } from '../../../src/core/target';
 
 // Disables all other tests; useful for debugging. Multiple tests can have
 // this tag and they'll all be run (but all others won't).