Revert https://codereview.chromium.org/1291903002 (protobuf roll).

third_party/protobuf/CONTRIBUTORS.txt

Index: third_party/protobuf/CONTRIBUTORS.txt
diff --git a/third_party/protobuf/CONTRIBUTORS.txt b/third_party/protobuf/CONTRIBUTORS.txt
index bab147b275031e512d51a20402d943a383f2473e..7c1ac80d661c1d0635dac373779811ae8287ba29 100644
--- a/third_party/protobuf/CONTRIBUTORS.txt
+++ b/third_party/protobuf/CONTRIBUTORS.txt
@@ -17,12 +17,6 @@ Proto2 Python primary authors:
   Will Robinson <robinson@google.com>
   Petar Petrov <petar@google.com>
 
-Java Nano primary authors:
-  Brian Duff <bduff@google.com>
-  Tom Chao <chaot@google.com>
-  Max Cai <maxtroy@google.com>
-  Ulas Kirazci <ulas@google.com>
-
 Large code contributions:
   Jason Hsueh <jasonh@google.com>
   Joseph Schorr <jschorr@google.com>
@@ -92,11 +86,3 @@ Patch contributors:
     * Fix bug with permanent callbacks that delete themselves when run.
   Michael Kucharski <m.kucharski@gmail.com>
     * Added CodedInputStream.getTotalBytesRead().
-  Kacper Kowalik <xarthisius.kk@gmail.com>
-    * Fixed m4/acx_pthread.m4 problem for some Linux distributions.
-  William Orr <will@worrbase.com>
-    * Fixed detection of sched_yield on Solaris.
-    * Added atomicops for Solaris
-  Andrew Paprocki <andrew@ishiboo.com>
-    * Fixed minor IBM xlC compiler build issues
-    * Added atomicops for AIX (POWER)