[cleanup] remove unused Destructuring Assignment bailout reason

src/bailout-reason.h

Index: src/bailout-reason.h
diff --git a/src/bailout-reason.h b/src/bailout-reason.h
index e90c2a8887dbeae008bd1744524e6a9bcc604dd7..5d4f15264dc0554e4060ff054553d35012e65507 100644
--- a/src/bailout-reason.h
+++ b/src/bailout-reason.h
@@ -21,7 +21,6 @@ namespace internal {
     "Arguments object value in a test context")                                \
   V(kArrayBoilerplateCreationFailed, "Array boilerplate creation failed")      \
   V(kArrayIndexConstantValueTooBig, "Array index constant value too big")      \
-  V(kAssignmentPattern, "Destructuring assignment")                            \
   V(kAssignmentToArguments, "Assignment to arguments")                         \
   V(kAssignmentToLetVariableBeforeInitialization,                              \
     "Assignment to let variable before initialization")                        \