[cleanup] Drop unused Allocate*String MacroAssembler instructions

src/arm/macro-assembler-arm.h

Index: src/arm/macro-assembler-arm.h
diff --git a/src/arm/macro-assembler-arm.h b/src/arm/macro-assembler-arm.h
index 02df3cef6bb62c0dc6afcdb277351fe69953fcb8..aa2673a48a01d6282a9a2fbc7bd2e4b4294b4b2e 100644
--- a/src/arm/macro-assembler-arm.h
+++ b/src/arm/macro-assembler-arm.h
@@ -787,32 +787,6 @@ class MacroAssembler: public Assembler {
   void FastAllocate(Register object_size, Register result, Register result_end,
                     Register scratch, AllocationFlags flags);
 
-  void AllocateTwoByteString(Register result,
-                             Register length,
-                             Register scratch1,
-                             Register scratch2,
-                             Register scratch3,
-                             Label* gc_required);
-  void AllocateOneByteString(Register result, Register length,
-                             Register scratch1, Register scratch2,
-                             Register scratch3, Label* gc_required);
-  void AllocateTwoByteConsString(Register result,
-                                 Register length,
-                                 Register scratch1,
-                                 Register scratch2,
-                                 Label* gc_required);
-  void AllocateOneByteConsString(Register result, Register length,
-                                 Register scratch1, Register scratch2,
-                                 Label* gc_required);
-  void AllocateTwoByteSlicedString(Register result,
-                                   Register length,
-                                   Register scratch1,
-                                   Register scratch2,
-                                   Label* gc_required);
-  void AllocateOneByteSlicedString(Register result, Register length,
-                                   Register scratch1, Register scratch2,
-                                   Label* gc_required);
-
   // Allocates a heap number or jumps to the gc_required label if the young
   // space is full and a scavenge is needed. All registers are clobbered also
   // when control continues at the gc_required label.
@@ -1346,11 +1320,6 @@ class MacroAssembler: public Assembler {
       Register first_object_instance_type, Register second_object_instance_type,
       Register scratch1, Register scratch2, Label* failure);
 
-  // Check if instance type is sequential one-byte string and jump to label if
-  // it is not.
-  void JumpIfInstanceTypeIsNotSequentialOneByte(Register type, Register scratch,
-                                                Label* failure);
-
   void JumpIfNotUniqueNameInstanceType(Register reg, Label* not_unique_name);
 
   void EmitSeqStringSetCharCheck(Register string,