Revert "[API] Change GetCodeRange to match the style of GetEmbeddedCodeRange"

This reverts commit 5fb55097.

Reason for revert: This does not make sense for the chromium use-case

Original change's description:
> [API] Change GetCodeRange to match the style of GetEmbeddedCodeRange
> 
> Deprecate GetCodeRange(void** start, size_t* length_in_bytes) in favor
> of a new signature MemoryRange GetCodeRange() which is consistent with
> that of GetEmbeddedCodeRange.
> 
> Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
> Change-Id: Ic5e244981422a2c75485c851ca768e54914cc539
> Reviewed-on: https://chromium-review.googlesource.com/1245741
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#56241}

TBR=yangguo@chromium.org,petermarshall@chromium.org

Change-Id: I51e8bedcb099d3f153ead1451284bf97017bedcf
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/1249126Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56264}

include/v8.h

@@ -8113,9 +8113,7 @@ class V8_EXPORT Isolate {
    *
    * https://code.google.com/p/v8/issues/detail?id=3598
    */
-  V8_DEPRECATE_SOON("Use MemoryRange GetCodeRange()",
-                    void GetCodeRange(void** start, size_t* length_in_bytes));
-  MemoryRange GetCodeRange();
+  void GetCodeRange(void** start, size_t* length_in_bytes);
 
   /**
    * Returns a memory range containing the code for V8's embedded functions

src/api.cc

@@ -8718,13 +8718,6 @@ void Isolate::GetCodeRange(void** start, size_t* length_in_bytes) {
   *length_in_bytes = code_range.size();
 }
 
-MemoryRange Isolate::GetCodeRange() {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
-  const base::AddressRegion& code_range =
-      isolate->heap()->memory_allocator()->code_range();
-  return {reinterpret_cast<void*>(code_range.begin()), code_range.size()};
-}
-
 MemoryRange Isolate::GetEmbeddedCodeRange() {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
   return {reinterpret_cast<const void*>(isolate->embedded_blob()),