Remove unused RelocInfoWriter::WriteData

Change-Id: I7996f49f5358d8be684a39b64020bc6bef82b7bb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3739228
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81560}

src/codegen/reloc-info.cc

@@ -123,14 +123,6 @@ void RelocInfoWriter::WriteIntData(int number) {
   }
 }
 
-void RelocInfoWriter::WriteData(intptr_t data_delta) {
-  for (int i = 0; i < kIntptrSize; i++) {
-    *--pos_ = static_cast<byte>(data_delta);
-    // Signed right shift is arithmetic shift.  Tested in test-utils.cc.
-    data_delta = data_delta >> kBitsPerByte;
-  }
-}
-
 void RelocInfoWriter::Write(const RelocInfo* rinfo) {
   RelocInfo::Mode rmode = rinfo->rmode();
 #ifdef DEBUG

src/codegen/reloc-info.h

@@ -414,7 +414,6 @@ class RelocInfoWriter {
   inline void WriteMode(RelocInfo::Mode rmode);
   inline void WriteModeAndPC(uint32_t pc_delta, RelocInfo::Mode rmode);
   inline void WriteIntData(int data_delta);
-  inline void WriteData(intptr_t data_delta);
 
   byte* pos_;
   byte* last_pc_;