Revert of [test] Add back lsan leak detection

tools/memory/lsan/suppressions.txt

Index: tools/memory/lsan/suppressions.txt
diff --git a/tools/memory/lsan/suppressions.txt b/tools/memory/lsan/suppressions.txt
deleted file mode 100644
index 36e59ecd5108b87cb461fbc44cd4ff5ae728d707..0000000000000000000000000000000000000000
--- a/tools/memory/lsan/suppressions.txt
+++ /dev/null
@@ -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