Revert of [wasm] Initial signal handler

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 4fa32dda6f6f84915de69dcb1562a60aacd52ec2..cfd51a30d220ee4f670f0ffd477fa44ea3abddab 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -69,7 +69,6 @@
 #include "src/snapshot/snapshot.h"
 #include "src/startup-data-util.h"
 #include "src/tracing/trace-event.h"
-#include "src/trap-handler/trap-handler.h"
 #include "src/unicode-inl.h"
 #include "src/v8.h"
 #include "src/v8threads.h"
@@ -6152,16 +6151,6 @@
   return true;
 }
 
-#if V8_OS_LINUX && V8_TARGET_ARCH_X64
-bool V8::TryHandleSignal(int signum, void* info, void* context) {
-  return v8::internal::trap_handler::TryHandleSignal(
-      signum, static_cast<siginfo_t*>(info), static_cast<ucontext_t*>(context));
-}
-#endif  // V8_OS_LINUX
-
-bool V8::RegisterDefaultSignalHandler() {
-  return v8::internal::trap_handler::RegisterDefaultSignalHandler();
-}
 
 void v8::V8::SetEntropySource(EntropySource entropy_source) {
   base::RandomNumberGenerator::SetEntropySource(entropy_source);