[inspector] removed unused code from JavaScriptSourceFrame

src/inspector/java-script-call-frame.cc

 /*
  * Copyright (c) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 43 matching lines @@
   v8::Local<v8::Function> func = v8::Local<v8::Function>::Cast(
       callFrame->Get(context, toV8StringInternalized(m_isolate, name))
           .ToLocalChecked());
   v8::Local<v8::Value> result;
   if (!func->Call(context, callFrame, 0, nullptr).ToLocal(&result) ||
       !result->IsInt32())
     return 0;
   return result.As<v8::Int32>()->Value();
 }
 
-int JavaScriptCallFrame::sourceID() const {
-  return callV8FunctionReturnInt("sourceID");
-}
-
-int JavaScriptCallFrame::line() const {
-  return callV8FunctionReturnInt("line");
-}
-
-int JavaScriptCallFrame::column() const {
-  return callV8FunctionReturnInt("column");
-}
-
 int JavaScriptCallFrame::contextId() const {
   return callV8FunctionReturnInt("contextId");
 }
 
 bool JavaScriptCallFrame::isAtReturn() const {
   v8::HandleScope handleScope(m_isolate);
   v8::Local<v8::Context> context =
       v8::Local<v8::Context>::New(m_isolate, m_debuggerContext);
   v8::Local<v8::Object> callFrame =
       v8::Local<v8::Object>::New(m_isolate, m_callFrame);
@@ skipping 72 matching lines @@
               .ToLocalChecked());
   v8::Local<v8::Value> argv[] = {
       v8::Local<v8::Value>(v8::Integer::New(m_isolate, scopeNumber)),
       variableName, newValue};
   v8::TryCatch try_catch(m_isolate);
   return setVariableValueFunction->Call(context, callFrame, arraysize(argv),
                                         argv);
 }
 
 }  // namespace v8_inspector