Removed dead code in program_manager.cc

gpu/command_buffer/service/program_manager.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/program_manager.h"
 
 #include <algorithm>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 65 matching lines @@
   GLint index = 0;
   size_t last = name.size() - 1;
   for (size_t pos = open_pos + 1; pos < last; ++pos) {
     int8 digit = name[pos] - '0';
     if (digit < 0 || digit > 9) {
       return false;
     }
     index = index * 10 + digit;
   }
 
-  if (index < 0) {
-    return false;
-  }
-
   *element_index = index;
   *new_name = name.substr(0, open_pos);
   return true;
 }
 
 }  // anonymous namespace.
 
 ProgramManager::ProgramInfo::UniformInfo::UniformInfo()
     : size(0) {
 }
@@ skipping 1016 matching lines @@
 }
 
 int32 ProgramManager::MakeFakeLocation(int32 index, int32 element) {
   return index + element * 0x10000;
 }
 
 }  // namespace gles2
 }  // namespace gpu