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chore: remove unused statements
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lib/internal/abort_controller.js

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@@ -108,11 +108,6 @@ const finalizer = new SafeFinalizationRegistry(({ sourceSignalRef, composedSigna
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gcPersistentSignals.delete(composedSignal);
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}
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}
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const sourceSignal = sourceSignalRef.deref();
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if (sourceSignal !== undefined) {
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sourceSignal[kDependantSignals].delete(composedSignalRef);
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}
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});
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const kAborted = Symbol('kAborted');
@@ -312,7 +307,6 @@ class AbortSignal extends EventTarget {
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// listener, then we don't want it to be gc'd while the listener
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// is attached and the timer still hasn't fired. So, we retain a
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// strong ref that is held for as long as the listener is registered.
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gcPersistentSignals.add(this);
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}
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}

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