Remove position info from relocation info.

src/ia32/assembler-ia32.h

Index: src/ia32/assembler-ia32.h
diff --git a/src/ia32/assembler-ia32.h b/src/ia32/assembler-ia32.h
index 4e542d72c9b04a60a5cefc90266c852d2073ecc0..0241eb4ba23f5c7ea03c7ddbaadd64f5e82ceb12 100644
--- a/src/ia32/assembler-ia32.h
+++ b/src/ia32/assembler-ia32.h
@@ -1465,10 +1465,6 @@ class Assembler : public AssemblerBase {
 
   static bool IsNop(Address addr);
 
-  AssemblerPositionsRecorder* positions_recorder() {
-    return &positions_recorder_;
-  }
-
   int relocation_writer_size() {
     return (buffer_ + buffer_size_) - reloc_info_writer.pos();
   }
@@ -1574,9 +1570,6 @@ class Assembler : public AssemblerBase {
 
   // code generation
   RelocInfoWriter reloc_info_writer;
-
-  AssemblerPositionsRecorder positions_recorder_;
-  friend class AssemblerPositionsRecorder;
 };