Revert of Add test for new FrontBufferedStream behavior.

Revert of Add test for new FrontBufferedStream behavior. (patchset #1 id:1 of https://codereview.chromium.org/641813009/)

Reason for revert:
Test is SkASSERTing on Macs, e.g:

http://chromegw.corp.google.com/i/client.skia/builders/Test-Mac10.6-MacMini4.1-GeForce320M-x86_64-Debug/builds/257/steps/dm/logs/stdio

210 tasks left	1737M peak	    1ms	test FrontBufferedStream../../src/ports/SkImageDecoder_CG.cpp:43: failed assertion "data"

Signal 11:
_sigtramp (+0x1a)
SkStreamToCGImageSource(SkStream*) (+0x62)
SkImageDecoder_CG::onDecode(SkStream*, SkBitmap*, SkImageDecoder::Mode) (+0x2e)
SkImageDecoder::decode(SkStream*, SkBitmap*, SkColorType, SkImageDecoder::Mode) (+0x81)
SkImageDecoder::DecodeStream(SkStreamRewindable*, SkBitmap*, SkColorType, SkImageDecoder::Mode, SkImageDecoder::Format*) (+0xff)
SkImageDecoder::DecodeStream(SkStreamRewindable*, SkBitmap*) (+0x31)
test_ShortFrontBufferedStream(skiatest::Reporter*) (+0x97)
skiatest::ShortFrontBufferedStreamClass::onRun(skiatest::Reporter*) (+0x19)
skiatest::Test::run() (+0x7c)
DM::CpuTestTask::draw() (+0x5a)
DM::CpuTask::run() (+0x9e)
non-virtual thunk to DM::CpuTask::run() (+0x1c)
(anonymous namespace)::ThreadPool::Loop(void*) (+0xf4)
thread_start(void*) (+0x54)
_pthread_start (+0x14b)


Original issue's description:
> Add test for new FrontBufferedStream behavior.
> 
> Test for https://skia.googlesource.com/skia/+/dd5a1e094c19fa10202c37c50a1f799e5af5dac0
> 
> Verify that FrontBufferedStream does not attempt to read beyond the
> end of its underlying stream.
> 
> Committed: https://skia.googlesource.com/skia/+/da59f05c6738dbb9a92cad21c608cdfae53a76b2

TBR=reed@google.com,scroggo@google.com
NOTREECHECKS=true
NOTRY=true

Committed: https://skia.googlesource.com/skia/+/404eb87993d557cffb9f76bedf42edef0ed5280f

[mtklein, 2014-10-23 19:07:50]

Created Revert of Add test for new FrontBufferedStream behavior.

[commit-bot: I haz the power, 2014-10-23 19:07:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/649553003/1

[commit-bot: I haz the power, 2014-10-23 19:08:17]

Committed patchset #1 (id:1) as 404eb87993d557cffb9f76bedf42edef0ed5280f