Revert of Pool implementation for zone segments

BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/dcheck_always_on.gni")
 import("//build/config/mips.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 
@@ skipping 1683 matching lines @@
     "src/wasm/wasm-module.h",
     "src/wasm/wasm-opcodes.cc",
     "src/wasm/wasm-opcodes.h",
     "src/wasm/wasm-result.cc",
     "src/wasm/wasm-result.h",
     "src/zone/accounting-allocator.cc",
     "src/zone/accounting-allocator.h",
     "src/zone/zone-allocator.h",
     "src/zone/zone-allocator.h",
     "src/zone/zone-containers.h",
-    "src/zone/zone-segment.cc",
     "src/zone/zone-segment.h",
     "src/zone/zone.cc",
     "src/zone/zone.h",
   ]
 
   if (v8_current_cpu == "x86") {
     sources += [
       "src/builtins/ia32/builtins-ia32.cc",
       "src/compiler/ia32/code-generator-ia32.cc",
       "src/compiler/ia32/instruction-codes-ia32.h",
@@ skipping 1063 matching lines @@
     ":fuzzer_support",
     ":lib_wasm_section_fuzzer",
     ":wasm_module_runner",
   ]
 
   configs = [ ":internal_config" ]
 }
 
 v8_fuzzer("wasm_data_section_fuzzer") {
 }