diff --git a/llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.h b/llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.h
--- a/llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.h
+++ b/llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.h
@@ -91,9 +91,6 @@
 
   const object::MachOObjectFile &getObject() const { return Obj; }
 
-  void addCustomSectionParser(StringRef SectionName,
-                              SectionParserFunction Parse);
-
   virtual Error addRelocations() = 0;
 
   /// Create a symbol.
@@ -214,9 +211,6 @@
                                     size_t Size, bool IsText,
                                     bool IsNoDeadStrip, bool IsCanonical);
 
-  /// Create graph blocks and symbols for all sections.
-  Error graphifySectionsWithCustomParsers();
-
   /// Graphify cstring section.
   Error graphifyCStringSection(NormalizedSection &NSec,
                                std::vector<NormalizedSymbol *> NSyms);
@@ -233,7 +227,6 @@
   Section *CommonSection = nullptr;
 
   DenseMap<uint32_t, NormalizedSymbol *> IndexToSymbol;
-  StringMap<SectionParserFunction> CustomSectionParserFunctions;
 };
 
 /// A pass to split up __LD,__compact_unwind sections.
diff --git a/llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.cpp b/llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.cpp
--- a/llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.cpp
+++ b/llvm/lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.cpp
@@ -37,9 +37,6 @@
   if (auto Err = graphifyRegularSymbols())
     return std::move(Err);
 
-  if (auto Err = graphifySectionsWithCustomParsers())
-    return std::move(Err);
-
   if (auto Err = addRelocations())
     return std::move(Err);
 
@@ -59,13 +56,6 @@
   SubsectionsViaSymbols = MachHeader.flags & MachO::MH_SUBSECTIONS_VIA_SYMBOLS;
 }
 
-void MachOLinkGraphBuilder::addCustomSectionParser(
-    StringRef SectionName, SectionParserFunction Parser) {
-  assert(!CustomSectionParserFunctions.count(SectionName) &&
-         "Custom parser for this section already exists");
-  CustomSectionParserFunctions[SectionName] = std::move(Parser);
-}
-
 Linkage MachOLinkGraphBuilder::getLinkage(uint16_t Desc) {
   if ((Desc & MachO::N_WEAK_DEF) || (Desc & MachO::N_WEAK_REF))
     return Linkage::Weak;
@@ -421,14 +411,7 @@
       continue;
     }
 
-    // Skip sections with custom parsers.
-    if (CustomSectionParserFunctions.count(NSec.GraphSection->getName())) {
-      LLVM_DEBUG({
-        dbgs() << "  Skipping section " << NSec.GraphSection->getName()
-               << " as it has a custom parser.\n";
-      });
-      continue;
-    } else if ((NSec.Flags & MachO::SECTION_TYPE) ==
+    if ((NSec.Flags & MachO::SECTION_TYPE) ==
                MachO::S_CSTRING_LITERALS) {
       if (auto Err = graphifyCStringSection(
               NSec, std::move(SecIndexToSymbols[SecIndex])))
@@ -609,26 +592,6 @@
   return Sym;
 }
 
-Error MachOLinkGraphBuilder::graphifySectionsWithCustomParsers() {
-  // Graphify special sections.
-  for (auto &KV : IndexToSection) {
-    auto &NSec = KV.second;
-
-    // Skip non-graph sections.
-    if (!NSec.GraphSection)
-      continue;
-
-    auto HI = CustomSectionParserFunctions.find(NSec.GraphSection->getName());
-    if (HI != CustomSectionParserFunctions.end()) {
-      auto &Parse = HI->second;
-      if (auto Err = Parse(NSec))
-        return Err;
-    }
-  }
-
-  return Error::success();
-}
-
 Error MachOLinkGraphBuilder::graphifyCStringSection(
     NormalizedSection &NSec, std::vector<NormalizedSymbol *> NSyms) {
   assert(NSec.GraphSection && "C string literal section missing graph section");