Remove includes clangd added

Author: JDevlieghere

lldb/source/Symbol/SymbolFile.cpp

@@ -12,9 +12,7 @@
 #include "lldb/Core/PluginManager.h"
 #include "lldb/Symbol/CompileUnit.h"
 #include "lldb/Symbol/ObjectFile.h"
-#include "lldb/Symbol/Symbol.h"
 #include "lldb/Symbol/SymbolFileOnDemand.h"
-#include "lldb/Symbol/Symtab.h"
 #include "lldb/Symbol/TypeMap.h"
 #include "lldb/Symbol/TypeSystem.h"
 #include "lldb/Symbol/VariableList.h"