Removes some unneeded lints, especially `#[allow(unsafe_code)]`.
Testing: Refactor
Part of: #40383
Signed-off-by: WaterWhisperer <waterwhisperer24@qq.com>
This implements the `TextEncoderStream` WebIDL interface.
Testing: Existing WPT tests should be sufficient
Fixes: #37724
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Signed-off-by: minghuaw <wuminghua7@huawei.com>