Remove generated directories with 100s of files.

client/html/generated/html/dartium/Uint8ClampedArray.dart

Index: client/html/generated/html/dartium/Uint8ClampedArray.dart
diff --git a/client/html/generated/html/dartium/Uint8ClampedArray.dart b/client/html/generated/html/dartium/Uint8ClampedArray.dart
deleted file mode 100644
index 9af39b62358b3fe1942158dc2ad9c85582efac31..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/Uint8ClampedArray.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-
-class _Uint8ClampedArrayImpl extends _Uint8ArrayImpl implements Uint8ClampedArray, List<int> {
-  _Uint8ClampedArrayImpl._wrap(ptr) : super._wrap(ptr);
-
-  int get length() => _wrap(_ptr.length);
-
-  void setElements(Object array, [int offset = null]) {
-    if (offset === null) {
-      _ptr.setElements(_unwrap(array));
-      return;
-    } else {
-      _ptr.setElements(_unwrap(array), _unwrap(offset));
-      return;
-    }
-  }
-
-  Uint8ClampedArray subarray(int start, [int end = null]) {
-    if (end === null) {
-      return _wrap(_ptr.subarray(_unwrap(start)));
-    } else {
-      return _wrap(_ptr.subarray(_unwrap(start), _unwrap(end)));
-    }
-  }
-}