Remove oat_patches from the DWARF writer.

We no longer use them.

Test: test-art-host-gtest-dwarf_test
Change-Id: Ie018d2314f028584edb398b6310a7284a0ec2069
diff --git a/compiler/debug/elf_debug_line_writer.h b/compiler/debug/elf_debug_line_writer.h
index 0a13a92..f95912a 100644
--- a/compiler/debug/elf_debug_line_writer.h
+++ b/compiler/debug/elf_debug_line_writer.h
@@ -263,23 +263,17 @@
     }
     std::vector<uint8_t> buffer;
     buffer.reserve(opcodes.data()->size() + KB);
-    size_t offset = builder_->GetDebugLine()->GetPosition();
-    WriteDebugLineTable(directories, files, opcodes, offset, &buffer, &debug_line_patches_);
+    WriteDebugLineTable(directories, files, opcodes, &buffer);
     builder_->GetDebugLine()->WriteFully(buffer.data(), buffer.size());
     return buffer.size();
   }
 
-  void End(bool write_oat_patches) {
+  void End() {
     builder_->GetDebugLine()->End();
-    if (write_oat_patches) {
-      builder_->WritePatches(".debug_line.oat_patches",
-                             ArrayRef<const uintptr_t>(debug_line_patches_));
-    }
   }
 
  private:
   linker::ElfBuilder<ElfTypes>* builder_;
-  std::vector<uintptr_t> debug_line_patches_;
 };
 
 }  // namespace debug