[cleanup] Delete MacroAssembler::CopyBytes, it is dead code

src/bailout-reason.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_BAILOUT_REASON_H_
 #define V8_BAILOUT_REASON_H_
 
 namespace v8 {
 namespace internal {
 
@@ skipping 57 matching lines @@
     "Expected a fixed double array map in fast shallow clone array literal")   \
   V(kExpectedFunctionObject, "Expected function object in register")           \
   V(kExpectedHeapNumber, "Expected HeapNumber")                                \
   V(kExpectedJSReceiver, "Expected object to have receiver type")              \
   V(kExpectedNativeContext, "Expected native context")                         \
   V(kExpectedNonIdenticalObjects, "Expected non-identical objects")            \
   V(kExpectedNonNullContext, "Expected non-null context")                      \
   V(kExpectedPositiveZero, "Expected +0.0")                                    \
   V(kExpectedNewSpaceObject, "Expected new space object")                      \
   V(kExpectedUndefinedOrCell, "Expected undefined or cell in register")        \
-  V(kExpectingAlignmentForCopyBytes, "Expecting alignment for CopyBytes")      \
   V(kExternalStringExpectedButNotFound,                                        \
     "External string expected, but not found")                                 \
   V(kForInStatementWithNonLocalEachVariable,                                   \
     "ForInStatement with non-local each variable")                             \
   V(kForOfStatement, "ForOfStatement")                                         \
   V(kFunctionBeingDebugged, "Function is being debugged")                      \
   V(kFunctionCallsEval, "Function calls eval")                                 \
   V(kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry,                      \
     "The function_data field should be a BytecodeArray on interpreter entry")  \
   V(kGeneratedCodeIsTooLarge, "Generated code is too large")                   \
@@ skipping 184 matching lines @@
 };
 #undef ERROR_MESSAGES_CONSTANTS
 
 
 const char* GetBailoutReason(BailoutReason reason);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BAILOUT_REASON_H_