Remove third_party/golang.org/x/mobile as it is no longer used with Go 1.5.

third_party/go/src/golang.org/x/mobile/audio/al/const.go

Index: third_party/go/src/golang.org/x/mobile/audio/al/const.go
diff --git a/third_party/go/src/golang.org/x/mobile/audio/al/const.go b/third_party/go/src/golang.org/x/mobile/audio/al/const.go
deleted file mode 100644
index 6de4691f792a8e24ce0441bf0673e4a4a2dbeb91..0000000000000000000000000000000000000000
--- a/third_party/go/src/golang.org/x/mobile/audio/al/const.go
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package al
-
-// Error returns one of these error codes.
-const (
-	InvalidName      = 0xA001
-	InvalidEnum      = 0xA002
-	InvalidValue     = 0xA003
-	InvalidOperation = 0xA004
-	OutOfMemory      = 0xA005
-)
-
-// Distance models.
-const (
-	InverseDistance         = 0xD001
-	InverseDistanceClamped  = 0xD002
-	LinearDistance          = 0xD003
-	LinearDistanceClamped   = 0xD004
-	ExponentDistance        = 0xD005
-	ExponentDistanceClamped = 0xD006
-)
-
-// Global parameters.
-const (
-	paramDistanceModel   = 0xD000
-	paramDopplerFactor   = 0xC000
-	paramDopplerVelocity = 0xC001
-	paramSpeedOfSound    = 0xC003
-	paramVendor          = 0xB001
-	paramVersion         = 0xB002
-	paramRenderer        = 0xB003
-	paramExtensions      = 0xB004
-)
-
-// Source and listener parameters.
-const (
-	paramGain             = 0x100A
-	paramPosition         = 0x1004
-	paramVelocity         = 0x1006
-	paramOrientation      = 0x100F
-	paramMinGain          = 0x100D
-	paramMaxGain          = 0x100E
-	paramSourceState      = 0x1010
-	paramBuffersQueued    = 0x1015
-	paramBuffersProcessed = 0x1016
-	paramSecOffset        = 0x1024
-	paramSampleOffset     = 0x1025
-	paramByteOffset       = 0x1026
-)
-
-// A source could be in the state of initial, playing, paused or stopped.
-const (
-	Initial = 0x1011
-	Playing = 0x1012
-	Paused  = 0x1013
-	Stopped = 0x1014
-)
-
-// Buffer parameters.
-const (
-	paramFreq     = 0x2001
-	paramBits     = 0x2002
-	paramChannels = 0x2003
-	paramSize     = 0x2004
-)
-
-// Audio formats. Buffer.BufferData accepts one of these formats as the data format.
-const (
-	FormatMono8    = 0x1100
-	FormatMono16   = 0x1101
-	FormatStereo8  = 0x1102
-	FormatStereo16 = 0x1103
-)