Remove AudioBufferSourceNode.looping

LayoutTests/webaudio/deprecated-audiobuffersource-looping-expected.txt

Index: LayoutTests/webaudio/deprecated-audiobuffersource-looping-expected.txt
diff --git a/LayoutTests/webaudio/deprecated-audiobuffersource-looping-expected.txt b/LayoutTests/webaudio/deprecated-audiobuffersource-looping-expected.txt
deleted file mode 100644
index bd022fa31450623c069dba56d9202aa5a3802d9d..0000000000000000000000000000000000000000
--- a/LayoutTests/webaudio/deprecated-audiobuffersource-looping-expected.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-CONSOLE WARNING: AudioBufferSourceNode 'looping' attribute is deprecated.  Use 'loop' instead.
-Tests AudioBufferSourceNode looping with a variety of loop points.
-
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-PASS loop whole buffer by default with loopStart == loopEnd == 0
-PASS loop whole buffer explicitly
-PASS loop from middle to end of buffer
-PASS loop from start to middle of buffer
-PASS loop internally from 4 -> 6
-PASS loop internally from 3 -> 7
-PASS loop internally from 4 -> 6 with playbackRate of 0.5
-PASS loop internally from 4 -> 6 with playbackRate of 1.5
-PASS illegal playbackRate of 47 greater than loop length
-PASS illegal loop: loopStartFrame > loopEndFrame
-PASS illegal loop: loopStartFrame == loopEndFrame
-PASS illegal loop: loopStartFrame < 0
-PASS illegal loop: loopEndFrame > bufferLength
-