Revert of Implement suspend/resume for AudioContext

LayoutTests/webaudio/audiocontext-suspend-resume-expected.txt

-Test suspend/resume for an AudioContext
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-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
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-PASS context.state is "paused"
-PASS context.suspend() did not throw exception.
-PASS context.suspend() did not throw exception.
-PASS p1 = context.resume() did not throw exception.
-PASS [object Object] is an instance of function Promise() { [native code] }
-PASS p2 = context.resume() did not throw exception.
-PASS [object Object] is an instance of function Promise() { [native code] }
-PASS Promises from resume are not equal.
-PASS context.state is "paused"
-PASS Context resumed correctly.
-PASS Context resumed correctly.
-PASS context.state is "released"
-PASS context.suspend() threw exception InvalidStateError: Failed to execute 'suspend' on 'AudioContext': cannot suspend an AudioContext that has been released.
-PASS resume() on a released context rejected as expected
-PASS successfullyParsed is true
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-TEST COMPLETE
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