Remove reference to deprecated setter

Change-Id: Ie775c23175363135f58ebc12d476db2640cf200b
Reviewed-on: https://dart-review.googlesource.com/50060
Reviewed-by: Konstantin Shcheglov <[email protected]>
Commit-Queue: Brian Wilkerson <[email protected]>

Author: bwilkerson

pkg/analyzer/test/generated/parser_test.dart

@@ -9685,7 +9685,6 @@ class ParserTestCase extends EngineTestCase
     parser.parseFunctionBodies = parseFunctionBodies;
     parser.enableNnbd = enableNnbd;
     parser.enableOptionalNewAndConst = enableOptionalNewAndConst;
-    parser.enableUriInPartOf = enableUriInPartOf;
     parser.currentToken = tokenStream;
   }