Revert "Fill in the first pass of the parser to analyze hprof files."

This reverts commit b30f46fd080f367409b503e193d3dd42b0570bd9.

Reason for revert: Compile error in hprof_buffer_android_unittest.cc on x64 bot. 
https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket.appspot.com/8896255126674550192/+/steps/compile/0/stdout

Original change's description:
> Fill in the first pass of the parser to analyze hprof files.
> 
> The main purpose of the java heap profiler is to obtain a heap dump in
> the form of an hprof file and then parse the hprof file. Currently,
> there exists an empty parser that skips over everything in the hprof
> file.
> 
> With CL, we first parse each instance for given fields (object_id,
> names, etc..) and then store these values in different instance
> objects. We will be using these instance objects in the next CL which
> is the second pass over.
> 
> Bug: 1012072
> Change-Id: Ibe249056c180dd07b907ada129898248c91cbaec
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1898481
> Commit-Queue: ssid <ssid@chromium.org>
> Reviewed-by: Tommy Nyquist <nyquist@chromium.org>
> Reviewed-by: ssid <ssid@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#716986}

TBR=nyquist@chromium.org,ssid@chromium.org,zhanggeorge@google.com

Change-Id: Ic1a61810ab7d669b2f2fbae5786e30c17eff1970
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1012072
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1926535
Reviewed-by: Peter Kotwicz <pkotwicz@chromium.org>
Commit-Queue: Peter Kotwicz <pkotwicz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#717040}
10 files changed