Revert of [turbofan] Osr value typing + dynamic type checks on entry.

src/compiler/common-operator.h

Index: src/compiler/common-operator.h
diff --git a/src/compiler/common-operator.h b/src/compiler/common-operator.h
index 4ea7b67909da9ecb7b3c673b07f36caaa39e1bdb..2db0bfa7d19f0d15636f40deb7d17be995ebe528 100644
--- a/src/compiler/common-operator.h
+++ b/src/compiler/common-operator.h
@@ -170,13 +170,6 @@
                          const ZoneVector<MachineType>* types);
 
 Type* TypeGuardTypeOf(Operator const*) WARN_UNUSED_RESULT;
-
-int OsrValueIndexOf(Operator const*);
-
-enum class OsrGuardType { kUninitialized, kSignedSmall, kAny };
-size_t hash_value(OsrGuardType type);
-std::ostream& operator<<(std::ostream&, OsrGuardType);
-OsrGuardType OsrGuardTypeOf(Operator const*);
 
 // Interface for building common operators that can be used at any level of IR,
 // including JavaScript, mid-level, and low-level.
@@ -209,7 +202,6 @@
   const Operator* OsrNormalEntry();
   const Operator* OsrLoopEntry();
   const Operator* OsrValue(int index);
-  const Operator* OsrGuard(OsrGuardType type);
 
   const Operator* Int32Constant(int32_t);
   const Operator* Int64Constant(int64_t);