Revert r13901 to reland with proper credit to external contributor.

src/x64/assembler-x64.cc

Index: src/x64/assembler-x64.cc
diff --git a/src/x64/assembler-x64.cc b/src/x64/assembler-x64.cc
index 57d40f7946879014d61b254255df0e18d572f3c2..97b9075c991e1386d64a45a34a332b663feba1a4 100644
--- a/src/x64/assembler-x64.cc
+++ b/src/x64/assembler-x64.cc
@@ -841,16 +841,6 @@ void Assembler::call(Label* L) {
 }
 
 
-void Assembler::call(Address entry, RelocInfo::Mode rmode) {
-  ASSERT(RelocInfo::IsRuntimeEntry(rmode));
-  positions_recorder()->WriteRecordedPositions();
-  EnsureSpace ensure_space(this);
-  // 1110 1000 #32-bit disp.
-  emit(0xE8);
-  emit_runtime_entry(entry, rmode);
-}
-
-
 void Assembler::call(Handle<Code> target,
                      RelocInfo::Mode rmode,
                      TypeFeedbackId ast_id) {
@@ -1257,16 +1247,6 @@ void Assembler::j(Condition cc, Label* L, Label::Distance distance) {
 }
 
 
-void Assembler::j(Condition cc, Address entry, RelocInfo::Mode rmode) {
-  ASSERT(RelocInfo::IsRuntimeEntry(rmode));
-  EnsureSpace ensure_space(this);
-  ASSERT(is_uint4(cc));
-  emit(0x0F);
-  emit(0x80 | cc);
-  emit_runtime_entry(entry, rmode);
-}
-
-
 void Assembler::j(Condition cc,
                   Handle<Code> target,
                   RelocInfo::Mode rmode) {
@@ -1329,15 +1309,6 @@ void Assembler::jmp(Handle<Code> target, RelocInfo::Mode rmode) {
 }
 
 
-void Assembler::jmp(Address entry, RelocInfo::Mode rmode) {
-  ASSERT(RelocInfo::IsRuntimeEntry(rmode));
-  EnsureSpace ensure_space(this);
-  ASSERT(RelocInfo::IsRuntimeEntry(rmode));
-  emit(0xE9);
-  emit_runtime_entry(entry, rmode);
-}
-
-
 void Assembler::jmp(Register target) {
   EnsureSpace ensure_space(this);
   // Opcode FF/4 r64.
@@ -3078,7 +3049,6 @@ void Assembler::RecordComment(const char* msg, bool force) {
 
 
 const int RelocInfo::kApplyMask = RelocInfo::kCodeTargetMask |
-    1 << RelocInfo::RUNTIME_ENTRY |
     1 << RelocInfo::INTERNAL_REFERENCE |
     1 << RelocInfo::CODE_AGE_SEQUENCE;