Remove generated directories with 100s of files.

client/html/generated/html/dartium/PerformanceTiming.dart

Index: client/html/generated/html/dartium/PerformanceTiming.dart
diff --git a/client/html/generated/html/dartium/PerformanceTiming.dart b/client/html/generated/html/dartium/PerformanceTiming.dart
deleted file mode 100644
index e0abdc3ecb23c5d5ca5563ccf9ffc5d5ce389436..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/PerformanceTiming.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-
-class _PerformanceTimingImpl extends _DOMTypeBase implements PerformanceTiming {
-  _PerformanceTimingImpl._wrap(ptr) : super._wrap(ptr);
-
-  int get connectEnd() => _wrap(_ptr.connectEnd);
-
-  int get connectStart() => _wrap(_ptr.connectStart);
-
-  int get domComplete() => _wrap(_ptr.domComplete);
-
-  int get domContentLoadedEventEnd() => _wrap(_ptr.domContentLoadedEventEnd);
-
-  int get domContentLoadedEventStart() => _wrap(_ptr.domContentLoadedEventStart);
-
-  int get domInteractive() => _wrap(_ptr.domInteractive);
-
-  int get domLoading() => _wrap(_ptr.domLoading);
-
-  int get domainLookupEnd() => _wrap(_ptr.domainLookupEnd);
-
-  int get domainLookupStart() => _wrap(_ptr.domainLookupStart);
-
-  int get fetchStart() => _wrap(_ptr.fetchStart);
-
-  int get loadEventEnd() => _wrap(_ptr.loadEventEnd);
-
-  int get loadEventStart() => _wrap(_ptr.loadEventStart);
-
-  int get navigationStart() => _wrap(_ptr.navigationStart);
-
-  int get redirectEnd() => _wrap(_ptr.redirectEnd);
-
-  int get redirectStart() => _wrap(_ptr.redirectStart);
-
-  int get requestStart() => _wrap(_ptr.requestStart);
-
-  int get responseEnd() => _wrap(_ptr.responseEnd);
-
-  int get responseStart() => _wrap(_ptr.responseStart);
-
-  int get secureConnectionStart() => _wrap(_ptr.secureConnectionStart);
-
-  int get unloadEventEnd() => _wrap(_ptr.unloadEventEnd);
-
-  int get unloadEventStart() => _wrap(_ptr.unloadEventStart);
-}