final ReleaseAssets assets = release().assets();
final ReleaseAsset asset = assets.upload(
"testRemove".getBytes(), "text/plain", "remove.txt"
);
MatcherAssert.assertThat(
assets.iterate(),
Matchers.<ReleaseAsset>iterableWithSize(1)
);
asset.remove();
MatcherAssert.assertThat(
assets.iterate(),