Revert of [test] Add back lsan leak detection (patchset #4 id:60001 of https://codereview.chromium.org/2592663004/ )

Reason for revert:
Breaks mac asan. Need to keep leak check off on mac.

Original issue's description:
> [test] Add back lsan leak detection
>
> BUG=chromium:662388
> TBR=yangguo@chromium.org, glider@chromium.org, titzer@chromium.org
>
> Review-Url: https://codereview.chromium.org/2592663004
> Cr-Commit-Position: refs/heads/master@{#42815}
> Committed: e196d00df5

TBR=yangguo@chromium.org,glider@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:662388

Review-Url: https://codereview.chromium.org/2667993002
Cr-Commit-Position: refs/heads/master@{#42816}

gni/isolate.gni

@@ -61,11 +61,6 @@ template("v8_isolate_run") {
       } else {
         asan = "0"
       }
-      if (is_lsan) {
-        lsan = "1"
-      } else {
-        lsan = "0"
-      }
       if (is_msan) {
         msan = "1"
       } else {
@@ -163,8 +158,6 @@ template("v8_isolate_run") {
         "--config-variable",
         "is_gn=1",
         "--config-variable",
-        "lsan=$lsan",
-        "--config-variable",
         "msan=$msan",
         "--config-variable",
         "tsan=$tsan",

gypfiles/isolate.gypi

@@ -75,7 +75,6 @@
         '--config-variable', 'has_valgrind=<(has_valgrind)',
         '--config-variable', 'icu_use_data_file_flag=<(icu_use_data_file_flag)',
         '--config-variable', 'is_gn=0',
-        '--config-variable', 'lsan=<(lsan)',
         '--config-variable', 'msan=<(msan)',
         '--config-variable', 'tsan=<(tsan)',
         '--config-variable', 'coverage=<(coverage)',

tools/memory/lsan/suppressions.txt

@@ -1,19 +0,0 @@
-# Do not add new suppressions below.
-# TODO(machenbach): Delete this file as soon as it is empty.
-
-# cctest
-leak:v8::internal::Debug::NextAsyncTaskId
-leak:v8::internal::wasm::DecodeWasmModule
-leak:v8::internal::wasm::WasmInterpreter::WasmInterpreter
-leak:v8::internal::WasmDebugInfo::SetBreakpoint
-
-# debugger
-leak:v8_inspector::WasmTranslation::TranslatorImpl::DisassemblingTranslator::AddFakeScript
-leak:v8::internal::compiler::JumpThreading::ApplyForwarding
-
-# mjsunit
-leak:v8::internal::FuncNameInferrer::FuncNameInferrer
-leak:v8::internal::JSArrayBuffer::SetupAllocatingData
-
-# unittests
-leak:v8::internal::Isolate::FindOrAllocatePerThreadDataForThisThread

tools/run-tests.py

@@ -403,14 +403,7 @@ def SetupEnvironment(options):
   )
 
   if options.asan:
-    os.environ['ASAN_OPTIONS'] = ":".join([
-      'detect_leaks=1',
-      symbolizer,
-    ])
-    os.environ['LSAN_OPTIONS'] = ":".join([
-      'suppressions=%s' % os.path.join(
-          BASE_DIR, 'tools', 'memory', 'lsan', 'suppressions.txt'),
-    ])
+    os.environ['ASAN_OPTIONS'] = symbolizer
 
   if options.sancov_dir:
     assert os.path.exists(options.sancov_dir)

tools/testrunner/testrunner.isolate

@@ -27,12 +27,5 @@
         ],
       },
     }],
-    ['lsan==1', {
-      'variables': {
-        'files': [
-          '../memory/lsan/suppressions.txt',
-        ],
-      },
-    }],
   ],
 }