src: removes unused v8::Integer and v8::Array namespace

PR-URL: #32779
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de>

src/timers.cc

@@ -7,11 +7,9 @@
 namespace node {
 namespace {
 
-using v8::Array;
 using v8::Context;
 using v8::Function;
 using v8::FunctionCallbackInfo;
-using v8::Integer;
 using v8::Local;
 using v8::Object;
 using v8::Value;