remove pointers_in_code it's unused

src/codegen/irgen.cpp

@@ -1088,7 +1088,6 @@ std::pair<CompiledFunction*, llvm::Function*> doCompile(FunctionMetadata* md, So
     }
 
     CompiledFunction* cf = new CompiledFunction(md, spec, NULL, effort, exception_style, entry_descriptor);
-    setPointersInCodeStorage(&cf->pointers_in_code);
 
     // Make sure that the instruction memory keeps the module object alive.
     // TODO: implement this for real

src/codegen/irgen/util.cpp

@@ -100,18 +100,10 @@ llvm::Constant* getStringConstantPtr(llvm::StringRef str) {
 
 static llvm::StringMap<const void*> relocatable_syms;
 
-// Pointer to a vector where we want to keep track of all the pointers written directly into
-// the compiled code, which the GC needs to be aware of.
-std::vector<const void*>* pointers_in_code;
-
 void clearRelocatableSymsMap() {
     relocatable_syms.clear();
 }
 
-void setPointersInCodeStorage(std::vector<const void*>* v) {
-    pointers_in_code = v;
-}
-
 const void* getValueOfRelocatableSym(const std::string& str) {
     auto it = relocatable_syms.find(str);
     if (it != relocatable_syms.end())

src/core/types.h

@@ -345,9 +345,6 @@ public:
     // Otherwise this field is NULL.
     const OSREntryDescriptor* entry_descriptor;
 
-    // Pointers that were written directly into the code, which the GC should be aware of.
-    std::vector<const void*> pointers_in_code;
-
     // The function pointer to the generated code.  For convenience, it can be accessed
     // as one of many different types.
     // TODO: we instead make these accessor-functions that make sure that the code actually