Remove [NoInterfaceObject] from several WebAudio IDL interfaces

Source/modules/webaudio/AudioParam.idl

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 [
-    NoInterfaceObject,
     Conditional=WEB_AUDIO
 ] interface AudioParam {
     attribute float value;
     readonly attribute float minValue;
     readonly attribute float maxValue;
     readonly attribute float defaultValue;
 
     readonly attribute DOMString name;
 
     // FIXME: Could define units constants here (seconds, decibels, cents, etc.)...
@@ skipping 10 matching lines @@
     // Sets an array of arbitrary parameter values starting at time for the given duration.
     // The number of values will be scaled to fit into the desired duration.
     void setValueCurveAtTime(Float32Array values, float time, float duration);
 
     // Cancels all scheduled parameter changes with times greater than or equal to startTime.
     void cancelScheduledValues(float startTime);
 
     [MeasureAs=LegacyWebAudio, ImplementedAs=setTargetAtTime] void setTargetValueAtTime(float targetValue, float time, float timeConstant);
 
 };